Submission #2213338

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Source Code Expand

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define FOR(i, a, b) for(i = a; i < b; ++i)
#define REP(i, n) FOR(i, 0, n)
#define comp(a, b) int comp(const void *a, const void *b)
#define MOD  1000000007

typedef unsigned int uint;
typedef unsigned long ulong;
typedef long long ll;
typedef unsigned long long ull;

void TF_print(char boolean, char T[], char F[]){
    if(boolean){
        printf("%s\n", T);
    }else{
        printf("%s\n", F);
    }
}

comp(a, b){
    ll d =  *(ull*)a - *(ull*)b;
    if(d > 0){
        return 1;
    }else if(d < 0){
        return -1;
    }else{
        return 0;
    }
}

int main(){
    uint N;
    scanf("%u", &N);
    ull A[N], B[N], C[N];
    uint i;

    REP(i, N){
        scanf("%llu", &A[i]);
    }
    REP(i, N){
        scanf("%llu", &B[i]);
    }
    REP(i, N){
        scanf("%llu", &C[i]);
    }

    qsort(A, N, sizeof(ull), comp);
    qsort(B, N, sizeof(ull), comp);
    qsort(C, N, sizeof(ull), comp);

    uint a, b, c = 0;
    ull ANS = 0;
    REP(a, N){
        REP(b, N){      
            if(A[a] < B[b]){
                while(B[b] >= C[c]){
                    c++;
                }
                ANS += N - c;
                c = 0;
            }
        }
    }
    printf("%llu\n", ANS);
    return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:36:5: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%u", &N);
     ^
./Main.c:41:9: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%llu", &A[i]);
         ^
./Main.c:44:9: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%llu", &B[i]);
         ^
./Main.c:47:9: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%llu", &C[i]);
         ^

Judge Result