Submission #66575185

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Source Code Expand

#include <stdio.h>

int main (){

    int N ;
    int L;
    scanf("%d %d",&N, &L); 
    // printf("ok\n");
    int ispoint[L];
    for (int i = 0; i < L; i++){
        ispoint[i] = 0;
    }
    ispoint[0] = 1;
    int d[N+1];
    for(int i = 1; i < N; i++){
        scanf("%d", &d[i]);
        // printf("ok\n");
    }
    int now = 0;
    for(int i = 1; i < N; i++){ //ぐるぐるしながらぽいんて。
        now += d[i];
        now %= L;
        ispoint[now] += 1;
    }
    long long counter = 0;
    if(L % 3 != 0){
        printf("0\n");
        // printf("NF\n");
    }else{
        for(int i = 0; i < L / 3; i++){
            counter += (long long)ispoint[i] * ispoint[i + L/3] * ispoint[i + 2 * L/3];
        }
        printf("%lld\n", counter);
    }   
    // for(int i = 0; i < L; i++){ //ぐるぐるしながらぽいんて。
    //     printf("%d ", ispoint[i]);
    // }
    return 0;

}

Submission Info

Compile Error

Main.c: In function ‘main’:
Main.c:7:5: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
    7 |     scanf("%d %d",&N, &L);
      |     ^~~~~~~~~~~~~~~~~~~~~
Main.c:16:9: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   16 |         scanf("%d", &d[i]);
      |         ^~~~~~~~~~~~~~~~~~

Judge Result