Compilare: user.cpp: In function ‘int main()’: user.cpp:23:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( i = 0; i < A[z].size(); i++ ) ^ user.cpp:28:28: warning: suggest parentheses around assignment used as truth value [-Wparentheses] if( d[k] = inf ) ^ user.cpp:29:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( i = 0; i < A[k].size(); i++ ) ^ user.cpp:35:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( i = 0; i < A[k].size(); i++ ) ^