Compilare: user.cpp: In function ‘void dfs(int, int, int)’: user.cpp:24:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v[nod].size();i++) ~^~~~~~~~~~~~~~ user.cpp: In function ‘void dfs1(int)’: user.cpp:46:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<cycle[tip].size();i++) ~^~~~~~~~~~~~~~~~~~ user.cpp:48:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<cycle[tip].size();i++) ~^~~~~~~~~~~~~~~~~~ user.cpp:51:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<v[nod1].size();j++) ~^~~~~~~~~~~~~~~ user.cpp:62:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<cycle[tip].size();i++) sum[i]=sum[i-1]+val[cycle[tip][i]]; ~^~~~~~~~~~~~~~~~~~ user.cpp:66:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<cycle[tip].size();i++) ~^~~~~~~~~~~~~~~~~~ user.cpp:59:29: warning: unused variable ‘first’ [-Wunused-variable] int l=cycle[tip].size(),first; ^~~~~ user.cpp: In function ‘int main()’: user.cpp:109:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("pastrafaceri.in","r",stdin); ^ user.cpp:110:43: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("pastrafaceri.out","w",stdout); ^ user.cpp:112:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ user.cpp:113:48: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(int i=1;i<=n;i++) scanf("%lld",&val[i]); ^ user.cpp:116:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&y); ^ user.cpp: In function ‘void dfs1(int)’: user.cpp:77:24: warning: ‘poz’ may be used uninitialized in this function [-Wmaybe-uninitialized] for(int i=poz+l-1;i>poz;i--) ~^~~~