Compilare: user.cpp: In function ‘void Dij(unsigned int, unsigned int)’: user.cpp:31:22: warning: variable ‘pc’ set but not used [-Wunused-but-set-variable] { unsigned int i,p,pc; ^ user.cpp: In function ‘int main()’: user.cpp:67:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=2;i<=k;i++) ^ user.cpp:70:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=m;i++) ^ user.cpp:83:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=k;i++) ^ user.cpp:84:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=1;j<=k;j++) ^ user.cpp:85:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(t=1;t<=k;t++) ^ user.cpp:88:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=k;i++) ^ user.cpp:89:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<=k;j++) ^ user.cpp:91:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(t=1;t<=n;t++) ^ user.cpp:92:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (t!=a[i] && use[t]) ^ user.cpp:100:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=k;i++) ^ user.cpp:106:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=k;i++) ^ user.cpp:109:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(t=1;t<=k;t++) ^ user.cpp:117:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=k;i++) ^