foo.cc:22:39: warning: bad option '-fwhole-program' to pragma 'optimize' [-Wpragmas]
   22 | #pragma GCC optimize("-fwhole-program")
      |                                       ^
foo.cc:29:41: warning: bad option '-fstrict-overflow' to pragma 'optimize' [-Wpragmas]
   29 | #pragma GCC optimize("-fstrict-overflow")
      |                                         ^
foo.cc:31:41: warning: bad option '-fcse-skip-blocks' to pragma 'optimize' [-Wpragmas]
   31 | #pragma GCC optimize("-fcse-skip-blocks")
      |                                         ^
foo.cc:44:51: warning: bad option '-funsafe-loop-optimizations' to pragma 'optimize' [-Wpragmas]
   44 | #pragma GCC optimize("-funsafe-loop-optimizations")
      |                                                   ^
foo.cc:58:20: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
   58 |  inline void flush(){fwrite(buf,1,S-buf,stdout);S=buf;}
      |                    ^
foo.cc:58:20: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:58:20: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:58:20: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc:59:28: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
   59 |  inline void putchar(char c){*S++=c;if(S==T)flush();}
      |                            ^
foo.cc:59:28: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:59:28: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:59:28: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc:60:18: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
   60 |  struct NTR{~NTR(){flush();}}ztr;
      |                  ^
foo.cc:60:18: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:60:18: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:60:18: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc:64:43: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
   64 |  template<typename T>Reader&operator>>(T&x){
      |                                           ^
foo.cc:64:43: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:64:43: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:64:43: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc:72:28: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
   72 |  Reader&operator>>(double&x){
      |                            ^
foo.cc:72:28: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:72:28: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:72:28: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc:80:33: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
   80 |  Reader&operator>>(long double&x){
      |                                 ^
foo.cc:80:33: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:80:33: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:80:33: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc:88:32: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
   88 |  Reader&operator>>(__float128&x){
      |                                ^
foo.cc:88:32: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:88:32: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:88:32: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc:96:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
   96 |  Reader&operator>>(char&c){
      |                          ^
foo.cc:96:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:96:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:96:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc:100:28: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
  100 |  Reader&operator>>(char*str){
      |                            ^
foo.cc:100:28: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:100:28: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:100:28: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc:106:30: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
  106 |  Reader&operator>>(string&str){
      |                              ^
foo.cc:106:30: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:106:30: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:106:30: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc:112:54: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
  112 |  template<class _Tp>Reader&operator>>(vector<_Tp>&vec){for(unsigned i=0;i<vec.size();i++)cin>>vec[i];return*this;}
      |                                                      ^
foo.cc:112:54: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:112:54: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:112:54: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc:113:64: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
  113 |  template<class _Tp,class _tp>Reader&operator>>(pair<_Tp,_tp>&a){cin>>a.first>>a.second;return*this;}
      |                                                                ^
foo.cc:113:64: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:113:64: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:113:64: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc:114:9: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
  114 |  Reader(){}
      |         ^
foo.cc:114:9: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:114:9: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:114:9: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc: In member function 'Fastio::Reader& Fastio::Reader::operator>>(double&)':
foo.cc:78:3: warning: this 'while' clause does not guard... [-Wmisleading-indentation]
   78 |   while(s--)t/=10.0;x=(x+t)*f;return*this;
      |   ^~~~~
foo.cc:78:21: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'while'
   78 |   while(s--)t/=10.0;x=(x+t)*f;return*this;
      |                     ^
foo.cc: In member function 'Fastio::Reader& Fastio::Reader::operator>>(long double&)':
foo.cc:86:3: warning: this 'while' clause does not guard... [-Wmisleading-indentation]
   86 |   while(s--)t/=10.0;x=(x+t)*f;return*this;
      |   ^~~~~
foo.cc:86:21: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'while'
   86 |   while(s--)t/=10.0;x=(x+t)*f;return*this;
      |                     ^
foo.cc: In member function 'Fastio::Reader& Fastio::Reader::operator>>(__float128&)':
foo.cc:94:3: warning: this 'while' clause does not guard... [-Wmisleading-indentation]
   94 |   while(s--)t/=10.0;x=(x+t)*f;return*this;
      |   ^~~~~
foo.cc:94:21: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'while'
   94 |   while(s--)t/=10.0;x=(x+t)*f;return*this;
      |                     ^
foo.cc: At global scope:
foo.cc:120:43: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
  120 |  template<typename T>Writer&operator<<(T x){
      |                                           ^
foo.cc:120:43: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:120:43: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:120:43: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc:128:28: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
  128 |  Writer&operator<<(double x){
      |                            ^
foo.cc:128:28: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:128:28: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:128:28: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc:139:33: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
  139 |  Writer&operator<<(long double x){
      |                                 ^
foo.cc:139:33: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:139:33: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:139:33: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc:150:32: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
  150 |  Writer&operator<<(__float128 x){
      |                                ^
foo.cc:150:32: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:150:32: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:150:32: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc:161:26: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
  161 |  Writer&operator<<(char c){putchar(c);return*this;}
      |                          ^
foo.cc:161:26: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:161:26: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:161:26: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc:162:29: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
  162 |  Writer& operator<<(char*str){
      |                             ^
foo.cc:162:29: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:162:29: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:162:29: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc:166:34: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
  166 |  Writer&operator<<(const char*str){
      |                                  ^
foo.cc:166:34: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:166:34: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:166:34: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc:170:30: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
  170 |  Writer&operator<<(string str){
      |                              ^
foo.cc:170:30: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:170:30: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:170:30: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc:175:53: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
  175 |  template<class _Tp>Writer&operator<<(vector<_Tp>vec){for(unsigned i=0;i<vec.size()-1;i++)cout<<vec[i]<<" ";cout<<vec[vec.size()-1];return*this;}
      |                                                     ^
foo.cc:175:53: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:175:53: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:175:53: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc:176:63: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
  176 |  template<class _Tp,class _tp>Writer&operator<<(pair<_Tp,_tp>a){cout<<a.first<<" "<<a.second;return*this;}
      |                                                               ^
foo.cc:176:63: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:176:63: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:176:63: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc:177:9: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
  177 |  Writer(){}
      |         ^
foo.cc:177:9: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:177:9: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:177:9: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc: In member function 'Fastio::Writer& Fastio::Writer::operator<<(double)':
foo.cc:131:3: warning: this 'while' clause does not guard... [-Wmisleading-indentation]
  131 |   while(_)sta[++top]=_%10,_/=10;if(!top)putchar('0');
      |   ^~~~~
foo.cc:131:33: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'while'
  131 |   while(_)sta[++top]=_%10,_/=10;if(!top)putchar('0');
      |                                 ^~
foo.cc:132:3: warning: this 'while' clause does not guard... [-Wmisleading-indentation]
  132 |   while(top)putchar(sta[top]+'0'),--top;putchar('.');
      |   ^~~~~
foo.cc:132:41: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'while'
  132 |   while(top)putchar(sta[top]+'0'),--top;putchar('.');
      |                                         ^~~~~~~
foo.cc: In member function 'Fastio::Writer& Fastio::Writer::operator<<(long double)':
foo.cc:142:3: warning: this 'while' clause does not guard... [-Wmisleading-indentation]
  142 |   while(_)sta[++top]=_%10,_/=10;if(!top)putchar('0');
      |   ^~~~~
foo.cc:142:33: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'while'
  142 |   while(_)sta[++top]=_%10,_/=10;if(!top)putchar('0');
      |                                 ^~
foo.cc:143:3: warning: this 'while' clause does not guard... [-Wmisleading-indentation]
  143 |   while(top)putchar(sta[top]+'0'),--top;putchar('.');
      |   ^~~~~
foo.cc:143:41: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'while'
  143 |   while(top)putchar(sta[top]+'0'),--top;putchar('.');
      |                                         ^~~~~~~
foo.cc: In member function 'Fastio::Writer& Fastio::Writer::operator<<(__float128)':
foo.cc:153:3: warning: this 'while' clause does not guard... [-Wmisleading-indentation]
  153 |   while(_)sta[++top]=_%10,_/=10;if(!top)putchar('0');
      |   ^~~~~
foo.cc:153:33: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'while'
  153 |   while(_)sta[++top]=_%10,_/=10;if(!top)putchar('0');
      |                                 ^~
foo.cc:154:3: warning: this 'while' clause does not guard... [-Wmisleading-indentation]
  154 |   while(top)putchar(sta[top]+'0'),--top;putchar('.');
      |   ^~~~~
foo.cc:154:41: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'while'
  154 |   while(top)putchar(sta[top]+'0'),--top;putchar('.');
      |                                         ^~~~~~~
foo.cc: At global scope:
foo.cc:189:16: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
  189 |  void set(int x) //建立x*x的单位矩阵
      |                ^
foo.cc:189:16: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:189:16: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:189:16: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc:197:13: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
  197 |  void clear() //矩阵初始化
      |             ^
foo.cc:197:13: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:197:13: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:197:13: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc:204:35: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
  204 | matrix operator*(matrix x,matrix y) //重载运算符
      |                                   ^
foo.cc:204:35: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:204:35: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:204:35: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc:219:31: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
  219 | matrix operator^(matrix x,LL k) //需要矩阵乘法
      |                               ^
foo.cc:219:31: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:219:31: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:219:31: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc:230:16: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
  230 | int findp(int x){
      |                ^
foo.cc:230:16: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:230:16: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:230:16: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc:236:23: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
  236 | void unite(int x,int y){
      |                       ^
foo.cc:236:23: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:236:23: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:236:23: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
foo.cc:241:13: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
  241 | signed main(){
      |             ^
foo.cc:241:13: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
foo.cc:241:13: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:241:13: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]

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