Compilare: user.cpp: In function ‘int main()’: user.cpp:23:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(v[1].rest==n) ^ user.cpp:32:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(v[2].rest==n) ^ user.cpp:41:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(v[3].rest==n) ^ user.cpp:50:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(v[4].rest==n) ^ user.cpp:72:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int qq=1;qq<=v[in].vc[0];qq++) ^ user.cpp:77:48: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int qq=1;qq<=v[sf].vc[0];qq++) ^ user.cpp:11:31: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cifre4.in","r",stdin); ^ user.cpp:12:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cifre4.out","w",stdout); ^ user.cpp:13:15: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&t); ^ user.cpp:16:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&p); ^