Compilare: user.cpp: In function ‘void afisare()’: user.cpp:130:31: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long long int’ [-Wformat=] fprintf(fout, "%d\n", cost); ^ user.cpp:133:56: warning: unknown conversion type character ‘l’ in format [-Wformat=] fprintf(fout, "%Lld %d\n", G[A[i]].x, G[A[i]].y); ^ user.cpp:133:56: warning: too many arguments for format [-Wformat-extra-args] user.cpp: In function ‘void citire()’: user.cpp:120:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d", &n, &m); ^ user.cpp:122:60: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%d %d %d", &G[i].x, &G[i].y, &G[i].c); ^ user.cpp: In function ‘int main()’: user.cpp:43:17: warning: ‘nr’ may be used uninitialized in this function [-Wmaybe-uninitialized] ++nr; ^