Compilare: user.cpp: In function ‘int main()’: user.cpp:24:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if((nr3+q3.size())<=n) ^ user.cpp:40:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if((nr5+q5.size())<=n) ^ user.cpp:62:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if((nr3+q3.size())<=n) ^ user.cpp:83:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if((nr5+q5.size())<=n) ^ user.cpp:8:37: 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:9:39: 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:10:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^