Submission #1605175

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Source Code Expand

#include <stdio.h>
#define MAX 100001
static int abs(int a) {
    return a >= 0 ? a : -a;
}
static int min(int a, int b) {
    return a <= b ? a : b;
}
static int n, a[MAX], dp[MAX];
int main(void) {
    int i;
    scanf("%d", &n);
    for (i = 1; i <= n; ++i)
        scanf("%d", &a[i]);
    dp[1] = 0;
    if (n >= 2)
        dp[2] = dp[1] + abs(a[1] - a[2]);
    for (i = 3; i <= n; ++i)
        dp[i] = min(
            dp[i - 2] + abs(a[i - 2] - a[i]),
            dp[i - 1] + abs(a[i - 1] - a[i]));
    printf("%d\n", dp[n]);
    return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:12:5: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ^
./Main.c:14:9: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &a[i]);
         ^

Judge Result