QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#309379#8134. LCA Countingucup-team191#WA 4ms18192kbC++14999b2024-01-20 16:57:202024-01-20 16:57:21

Judging History

你现在查看的是最新测评结果

  • [2024-01-20 16:57:21]
  • 评测
  • 测评结果:WA
  • 用时:4ms
  • 内存:18192kb
  • [2024-01-20 16:57:20]
  • 提交

answer

#include <cstdio>
#include <vector>
#include <set>
#include <map>

#define X first
#define Y second
#define PB push_back

using namespace std;

const int N = 2e5 + 500;

map < int, int > mp[N];

int n;
vector < int > v[N];

void dfs(int x){
	if((int)v[x].size() == 0) {
		mp[x][0] = 1; return;
	}
	if((int)v[x].size() == 1) {
		dfs(v[x][0]); swap(mp[x], mp[v[x][0]]);
		return;
	}
	for(int y : v[x]) {
		dfs(y);
		if((int)mp[y].size() > (int)mp[x].size())
			swap(mp[x], mp[y]);
		for(auto tmp : mp[y]) mp[x][tmp.X] += tmp.Y;
	}
	mp[x][0] -= (int)v[x].size() - 2;
	mp[x][1] += (int)v[x].size() - 2;
}

int main(){
	scanf("%d", &n);
	for(int i = 2;i <= n;i++) {
		int p; scanf("%d", &p);
		v[p].PB(i);
	}
	dfs(1);
	vector < int > ans;
	for(auto tmp : mp[1]) {
		int t = tmp.Y;
		for(;t--;) ans.PB(tmp.X);
	}
	int sol = 0;
	for(int i = 0;i < (int)ans.size();i++) {
		sol += ans[i];
		printf("%d ", 2 * i + 1 - sol);
	}
	printf("\n");
	return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 17908kb

input:

7
1 1 2 4 2 2

output:

1 3 5 6 

result:

ok 4 number(s): "1 3 5 6"

Test #2:

score: 0
Accepted
time: 4ms
memory: 17900kb

input:

10
1 1 2 2 1 1 1 2 4

output:

1 3 5 6 7 8 9 

result:

ok 7 numbers

Test #3:

score: 0
Accepted
time: 0ms
memory: 18192kb

input:

10
1 2 2 4 5 6 1 2 4

output:

1 3 5 7 8 

result:

ok 5 number(s): "1 3 5 7 8"

Test #4:

score: 0
Accepted
time: 0ms
memory: 17908kb

input:

10
1 2 3 3 3 5 6 4 9

output:

1 3 4 

result:

ok 3 number(s): "1 3 4"

Test #5:

score: -100
Wrong Answer
time: 4ms
memory: 17960kb

input:

1000
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 2 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 4 1 2 2 1 1 1 1 2 1 1 1 1 2 2 1 1 1 1 1 6 3 1 1 1 2 2 1 1 2 1 2 1 3 1 2 1 1 2 1 1 1 1 1 1 1 4 1 5 1 1 1 1 1 2 1 1 2 1 2 1 2 5 3 1 3 1 1 2 1 2 1 1 3 2 1 6 2 1 2 5 1 1 1 3 2 1 2 1 1 1 1 1...

output:

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 12...

result:

wrong answer 5th numbers differ - expected: '8', found: '9'