Compilare: user.cpp: In function ‘void DFS(int, int, int, int)’: user.cpp:97:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<Gprim[nod].size(); i++) ^ user.cpp: In function ‘void citire()’: user.cpp:31:42: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d %d\n", &n, &m, &k); ^ user.cpp:34:79: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d %d\n", &muchii[i].x, &muchii[i].y, &muchii[i].cost); ^ user.cpp: In function ‘int main()’: user.cpp:135:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d", &x, &y); ^