Submission #1337328

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Source Code Expand

// Copyright 2017 wu_qing
#include <cstdio>
#include <algorithm>
const int N = 1e5 + 10;
int n, a[N], ans, cur;
bool s, f1;
int main() {
    scanf("%d", &n);
    for (int i = 0; i < n; i++)
        scanf("%d", a + i);
    n = std::unique(a, a + n) - a;
    while (cur < n) {
        ans++;
        if (cur == n - 1) break;
        s = a[cur] < a[cur + 1];
        for (int i = cur + 2; i <= n; i++) {
            if (i == n) {
                cur = n;
                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:8:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
                    ^
./Main.cpp:10:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", a + i);
                           ^

Judge Result