Compilare: main.cpp: In function 'int main()': main.cpp:122:68: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=] printf("%d\n", 1LL * dp[n] * fact[m - l] % MOD * comb(m, l) % MOD); ^ main.cpp:65:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("shuffle2.in", "r", stdin); ^ main.cpp:66:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("shuffle2.out", "w", stdout); ^ main.cpp:71:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &m); ^ main.cpp:74:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &u, &v); ^