Compilare: user.cpp: In function ‘void Dij(int, int)’: user.cpp:30:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=n;i++) ^ user.cpp:43:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (dm[x.nod]==x.cost) ^ user.cpp:46:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v[p].size();i++) ^ user.cpp:48:58: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (c[p][i]>=cp && x.cost+l[p][i]<dm[v[p][i]]) ^ user.cpp:28:13: warning: variable ‘pc’ set but not used [-Wunused-but-set-variable] { int i,p,pc; ^ user.cpp: In function ‘int main()’: user.cpp:64:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=2;i<=k;i++) ^ user.cpp:67:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=m;i++) ^ user.cpp:80:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=k;i++) ^ user.cpp:81:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=1;j<=k;j++) ^ user.cpp:82:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(t=1;t<=k;t++) ^ user.cpp:85:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=k;i++) ^ user.cpp:86:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<=k;j++) ^ user.cpp:88:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(t=1;t<=n;t++) ^ user.cpp:89:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (t!=a[i] && use[t]) ^ user.cpp:97:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=k;i++) ^ user.cpp:103:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=k;i++) ^