/in/foo.cc: In function 'int main()':
/in/foo.cc:78:8: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses]
      if(s[k][kk]==1)
        ^
/in/foo.cc:81:8: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses]
      if(s[k][kk]==2)
        ^
/in/foo.cc:84:8: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses]
      if(s[k][kk]==3)
        ^
/in/foo.cc:87:8: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses]
      if(s[k][kk]==4)
        ^
/in/foo.cc:90:8: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses]
      if(s[k][kk]==5)
        ^
/in/foo.cc:99:19: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
    if(fa==n||fa<=n&&fa+abc>=n) gu[i]=1;
              ~~~~~^~~~~~~~~~~
/in/foo.cc:35:15: warning: 'y' may be used uninitialized in this function [-Wmaybe-uninitialized]
   for(int j=y+3;j<len;j++) {
               ^