Compilare: user.cpp: In function ‘int main()’: user.cpp:25:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<H.size()-1;++i) ^ user.cpp:26:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=i+1;j<H.size();++j) ^ user.cpp:29:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<H.size();++i) suma+=H[i].first, V.push_back(H[i].first+H[i].second); ^ user.cpp:30:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<V.size()-1;++i) ^ user.cpp:31:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=i+1;j<V.size();++j) ^ user.cpp:33:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<H.size();++i) ^ user.cpp: In function ‘void openIOFiles()’: user.cpp:10:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("pitici3.in","r",stdin); ^ user.cpp:11:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("pitici3.out","w",stdout); ^ user.cpp: In function ‘int main()’: user.cpp:18:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:20:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&a,&b); ^ user.cpp:23:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&MAX); ^