Compilare: main.cpp: In function 'int main()': main.cpp:32:21: warning: format '%ld' expects argument of type 'long int', but argument 2 has type 'long long int' [-Wformat=] printf("%ld", nr); ^ main.cpp:27:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("dreptunghi.in", "r", stdin); ^ main.cpp:28:43: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("dreptunghi.out", "w", stdout); ^ main.cpp:30:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d\n", &n, &m); ^