/in/foo.cc: In function 'void case1(int)':
/in/foo.cc:7:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
     for(int j=1;j<=n;j++)
     ^~~
/in/foo.cc:9:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
         for(int i=1;i<=n/2;i++){
         ^~~