Submission #1337304

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Source Code Expand

// Copyright 2017 wu_qing
#include <cstdio>
const int N = 1e5 + 10;
int n, a[N], cur, ans;
bool s;
int main() {
    scanf("%d", &n);
    for (int i = 1; i <= n; i++)
        scanf("%d", a + i);
    cur = 1;
    while (cur <= n) {
        ans++;
        if (cur == n)
            break;
        s = a[cur] < a[cur + 1];
        cur = cur + 2;
        for (int i = cur; true; i++) {
            if (i > n) {
                cur = n + 1;
                break;
            }
            if (s != a[i - 1] < a[i]) {
                cur = i;
                break;
            }
        }
    }
    printf("%d\n", ans);
    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:7:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
                    ^
./Main.cpp:9:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", a + i);
                           ^

Judge Result