Compilare: user.cpp: In function ‘int main()’: user.cpp:25:38: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘LL* {aka long long int*}’ [-Wformat=] LL N, K; scanf("%I64d%I64d", &N, &K); ^ user.cpp:25:38: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘LL* {aka long long int*}’ [-Wformat=] user.cpp:28:24: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘LL {aka long long int}’ [-Wformat=] printf("%I64d\n", ret); ^ user.cpp:20:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cabana.in", "r", stdin); ^ user.cpp:21:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cabana.out", "w", stdout); ^ user.cpp:22:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] int T; scanf("%d", &T); ^ user.cpp:25:39: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] LL N, K; scanf("%I64d%I64d", &N, &K); ^