Compilare: main.cpp: In function 'void dfs(int, int, int)': main.cpp:47:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v[nod].size();i++) ~^~~~~~~~~~~~~~ main.cpp: In function 'void dfs1(int)': main.cpp:91:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<cycle[tip].size();i++) ~^~~~~~~~~~~~~~~~~~ main.cpp:95:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<cycle[tip].size();i++) ~^~~~~~~~~~~~~~~~~~ main.cpp:101:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<v[nod1].size();j++) ~^~~~~~~~~~~~~~~ main.cpp:123:18: 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]]; ~^~~~~~~~~~~~~~~~~~ main.cpp:131:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<cycle[tip].size();i++) ~^~~~~~~~~~~~~~~~~~ main.cpp:117:29: warning: unused variable 'first' [-Wunused-variable] int l=cycle[tip].size(),first; ^~~~~ main.cpp: In function 'int main()': main.cpp:217:41: 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); ^ main.cpp:219:43: 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); ^ main.cpp:223:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ main.cpp:225:48: 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]); ^ main.cpp:231:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&y); ^ main.cpp: In function 'void dfs1(int)': main.cpp:87:24: warning: 'poz' may be used uninitialized in this function [-Wmaybe-uninitialized] int tip=ciclu[nod],poz; ^~~