Compilare: user.cpp: In function ‘void dfs(int, int, int, int)’: user.cpp:94:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<gPrim[nod].size(); ++i) ^ user.cpp: In function ‘int main()’: user.cpp:37:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &x, &y); ^ user.cpp: In function ‘void citire()’: user.cpp:45:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d", &n, &m, &k); ^ user.cpp:47:63: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d", &gr[i].x, &gr[i].y, &gr[i].cost); ^