Compilare: user.cpp: In function ‘int main()’: user.cpp:41:7: warning: unused variable ‘ok’ [-Wunused-variable] bool ok = true; ^ user.cpp:25:55: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d%d%d%d%d%d", &n, &m, &pl, &pc, &cl, &cc); ^ user.cpp:29:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &padure[i][j]); ^