foo.cpp: In function 'int main()':
foo.cpp:4:19: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
 #define go(i,a,b) for(int i=a;i<=b;i++)
                   ^
foo.cpp:14:5: note: in expansion of macro 'go'
     go(i,rock[m],rock[m]+T)ans=min(ans,f[i]);end:printf("%d\n",ans);return 0;
     ^~
foo.cpp:14:46: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
     go(i,rock[m],rock[m]+T)ans=min(ans,f[i]);end:printf("%d\n",ans);return 0;
                                              ^~~