Submission #60587153

Source Code Expand

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#include <stdio.h>
#include <stdlib.h>
int compare(const void *a, const void *b) {
    long long int_a = *(long long *)a;
    long long int_b = *(long long *)b;
    return (int_a > int_b) - (int_a < int_b);
}
int main() {
    int N;
    scanf("%d", &N);
    long long *X = (long long *)malloc(N * sizeof(long long));
    for (int i = 0; i < N; i++) {
        scanf("%lld", &X[i]);
    }
    for (int i = 0; i <= N - 4; i++) {
        long long M = (X[i] + X[i + 3]) / 2;
        X[i + 1] = 2 * M - X[i + 1];        
        X[i + 2] = 2 * M - X[i + 2];       
 
 
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#include <stdio.h>
#include <stdlib.h>
int compare(const void *a, const void *b) {
    long long int_a = *(long long *)a;
    long long int_b = *(long long *)b;
    return (int_a > int_b) - (int_a < int_b);
}

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

    long long *X = (long long *)malloc(N * sizeof(long long));
    for (int i = 0; i < N; i++) {
        scanf("%lld", &X[i]);
    }

    for (int i = 0; i <= N - 4; i++) {
        long long M = (X[i] + X[i + 3]) / 2;
        X[i + 1] = 2 * M - X[i + 1];        
        X[i + 2] = 2 * M - X[i + 2];       
    }
    long long sum = 0;
    for (int i = 0; i < N; i++) {
        sum += X[i];
    }

    printf("%lld\n", sum);

    free(X);
    return 0;
}

Submission Info

Compile Error

Main.c: In function ‘main’:
Main.c:11:5: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   11 |     scanf("%d", &N);
      |     ^~~~~~~~~~~~~~~
Main.c:15:9: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   15 |         scanf("%lld", &X[i]);
      |         ^~~~~~~~~~~~~~~~~~~~

Judge Result