Compilare: user.c: In function ‘main’: user.c:47:3: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long long int’ [-Wformat=] fprintf(f, "%d\n", (1LL * (1LL * mul(MAX(S, N - S + 1), N) * (powLog(mul(1, MIN(S, N - S + 1)), MOD - 2) % MOD) % MOD) * ((powLog(2, S) + MOD - 2) % MOD)) % MOD); ^ user.c:42:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d %d", &N, &S); ^