Compilare: user.cpp: In function ‘int main()’: user.cpp:39:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<e[i].size();j++){ ^ user.cpp:63:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<et.size();j++){ ^ user.cpp:67:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(j+1<et.size()) ^ user.cpp:70:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(j+1==et.size()) break; ^ user.cpp:23:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("kino.in","r",stdin); ^ user.cpp:24:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("kino.out","w",stdout); ^ user.cpp:26:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%ld%ld",&n,&l); ^ user.cpp:27:43: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(i=1;i<=l;i++) scanf("%ld",&lim[i]); ^ user.cpp:30:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%ld",&x); ^