/in/foo.cc: In function 'void Cheng1(int (*)[4], int (*)[4])':
/in/foo.cc:133:3: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   for(j=1;j<=3;j++)
   ^~~
/in/foo.cc:136:4: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
    for(i=1;i<=3;i++)
    ^~~
/in/foo.cc: In function 'void KSM1(int)':
/in/foo.cc:165:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  for(i=1;i<=3;i++)
  ^~~
/in/foo.cc:169:3: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
   for(i=0;(1ll<<i)<=x;i++)
   ^~~
/in/foo.cc: In function 'void CAL(int, int, int)':
/in/foo.cc:174:6: warning: unused variable 'i' [-Wunused-variable]
  int i,j;
      ^
/in/foo.cc:174:8: warning: unused variable 'j' [-Wunused-variable]
  int i,j;
        ^
/in/foo.cc: In function 'void Cheng(int (*)[10], int (*)[10])':
/in/foo.cc:222:3: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   for(j=1;j<=9;j++)
   ^~~
/in/foo.cc:225:4: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
    for(i=1;i<=9;i++)
    ^~~
/in/foo.cc: In function 'int FIND(int, int, int)':
/in/foo.cc:390:6: warning: unused variable 'ans' [-Wunused-variable]
  int ans=0;
      ^~~