Compilare: user.cpp: In function ‘void Parcurgere(int, int)’: user.cpp:36:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v[nod].size();i++) ^ user.cpp:45:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i<v[nod].size()) son=v[nod][i].first; ^ user.cpp:34:9: warning: unused variable ‘k’ [-Wunused-variable] int k=-1; ^ user.cpp:35:9: warning: unused variable ‘sz’ [-Wunused-variable] int sz=v[nod].size(); ^ user.cpp: In function ‘void Solve(int)’: user.cpp:89:20: warning: suggest parentheses around assignment used as truth value [-Wparentheses] seen[st[i]]=cst[st[i]]=w[st[i]]=best[st[i]]=0; ^ user.cpp: In function ‘int main()’: user.cpp:99:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ecotraseu.in","r",stdin); ^ user.cpp:100:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ecotraseu.out","w",stdout); ^ user.cpp:101:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&t); ^ user.cpp:105:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:110:37: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&x,&y,&z); ^