Submission #1517273

---

Source Code Expand

#define _CRT_SECURE_NO_WARNINGS

#include <stdio.h>

int t(int a){
    if(a == 1 || a == 2){
        return 0;
    }
    else if(a == 3){
        return 1;
    }
    
    else{
        return t(a - 1) + t(a - 2) + t(a - 3);
    }
}

int main(void){
    int n, k;
    scanf("%d", &n);
    k = t(n);
    printf("%d\n", k);
    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:20:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
                    ^

Judge Result