Compilare: main.cpp: In function 'int main()': main.cpp:54:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<v.size(); ++i) mp[n][i+1]=v[i]; ~^~~~~~~~~ main.cpp:11:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("triunghi.in", "r", stdin); ^ main.cpp:12:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("triunghi.out", "w", stdout); ^ main.cpp:13:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld%lld", &n, &s); ^