Compilare: user.cpp: In function ‘void solve(int)’: user.cpp:16:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < temp.size(); i++) ~~^~~~~~~~~~~~~ user.cpp:22:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < temp.size(); i++) ~~^~~~~~~~~~~~~ user.cpp: In function ‘int main()’: user.cpp:31:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("partitionare.in", "r", stdin); ^ user.cpp:32:44: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("partitionare.out", "w", stdout); ^ user.cpp:35:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^