Submission #1358186

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Source Code Expand

// Copyright 2017 wu_qing
#include <cstdio>
#include <vector>
const int N = 1e5 + 10;
int n, k, t1, ans;
std::vector<int> to[N];
inline void dfs(int cur, int dis) {
    if (dis > k) {
        ans++;
        dis = 1;
    }
    for (int i : to[cur])
        dfs(i, dis + 1);
}
int main() {
    scanf("%d%d", &n, &k);
    scanf("%d", &t1);
    if (t1 != 1) ans++;
    for (int i = 2; i <= n; i++) {
        scanf("%d", &t1);
        to[t1].push_back(i);
    }
    dfs(1, 0);
    printf("%d\n", ans);
    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:16:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &n, &k);
                          ^
./Main.cpp:17:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &t1);
                     ^
./Main.cpp:20:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &t1);
                         ^

Judge Result