Compilare: user.cpp: In function ‘int main()’: user.cpp:221:46: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long int’ [-Wformat=] fprintf(fout, "%d %d\n", y, j); ^ user.cpp:221:46: warning: format ‘%d’ expects argument of type ‘int’, but argument 4 has type ‘long int’ [-Wformat=] user.cpp:173:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %ld", &n, &edges); ^ user.cpp:177:39: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%ld %ld", &i, &j); ^ user.cpp:229:70: warning: ‘k’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(fout, "%d %d\n", getNodeFromConex[k], getNodeFromConex[j]); ^