Compilare: main.cpp: In function 'int main()': main.cpp:8:5: warning: this 'while' clause does not guard... [-Wmisleading-indentation] while(k&&ans[k]<c&&k+n-i>=m)--k;ans[++k]=c; ^~~~~ main.cpp:8:37: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'while' while(k&&ans[k]<c&&k+n-i>=m)--k;ans[++k]=c; ^~~ main.cpp:5:46: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] int main(){freopen("trompeta.out","w",stdout); ^