Compilare: user.cpp: In function ‘void dfs(int, int, int, int)’: user.cpp:119:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i < Gprim[nod].size(); ++i) ^ user.cpp: In function ‘int main()’: user.cpp:45:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%d %d\n", &x, &y); ^ user.cpp: In function ‘void citire()’: user.cpp:54:42: 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:57:64: 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[i].x, &M[i].y, &M[i].cost); ^