Compilare: main.cpp: In function 'int main()': main.cpp:23:38: warning: format '%u' expects argument of type 'unsigned int', but argument 2 has type 'ulint {aka long long unsigned int}' [-Wformat=] printf("%I64u", (a + b - 1) % mod); ^ main.cpp:15:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("flori4.in", "r", stdin); ^ main.cpp:16:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("flori4.out", "w", stdout); ^ main.cpp:18:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^