Submission #1206472

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Source Code Expand

#include<cstdio>
#define max_n 100000
#define mod 10007

int N;

int tribonacci(int num){
	if(num == 1 || num == 2) return 0;
	if(num == 3) return 1;
	int a;
	int a1 = 0, a2 = 0, a3 = 1;
	for(int i = 4; i <= num; i++){
		a =(a1 + a2 + a3) % mod;
		a1 = a2;
		a2 = a3;
		a3 = a;
	}
	return a;
}

int main(void){
	scanf("%d", &N);

	int ans = tribonacci(N);

	printf("%d", ans);

	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:22:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N);
                 ^

Judge Result