Compilare: user.cpp: In function ‘void ridica(int*, long long int)’: user.cpp:58:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<ciclu[i].size()-1;++j) ^ user.cpp:66:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<ciclu[i].size();++j) ^ user.cpp: In function ‘int main()’: user.cpp:95:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("hideandseek.in","r",stdin); ^ user.cpp:96:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("hideandseek.out","w",stdout); ^ user.cpp:97:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%lld%lld",&n,&x,&y); ^ user.cpp:98:41: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(i=1;i<=n;++i) scanf("%d",&p1[i]); ^ user.cpp:99:41: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(i=1;i<=n;++i) scanf("%d",&p2[i]); ^