Compilare: user.cpp: In function ‘int main()’: user.cpp:23:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if((nr3+q3.size())<=n) ^ user.cpp:37:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if((nr5+q5.size())<=n) ^ user.cpp:57:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if((nr3+q3.size())<=n) ^ user.cpp:76:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if((nr5+q5.size())<=n) ^ user.cpp:7:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("puteri35.in","r",stdin); ^ user.cpp:8:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("puteri35.out","w",stdout); ^ user.cpp:9:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^