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ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#378018 | #8518. Roars III | Days_of_Future_Past# | WA | 4ms | 20988kb | C++17 | 1.8kb | 2024-04-05 22:35:34 | 2024-04-05 22:35:34 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
const int inf = 1e9 + 7;
#define pb push_back
typedef long long LL;
#define fi first
#define se second
const int mod = 1e9 + 7;
const int N = 200022;
char st[N];
int siz[N];
int dp[N], sd[N], ans[N];
map<int, int> ss[N];
vector<int> e[N];
void f(int v) {
if(st[v] == '0') {
dp[v] = sd[v] + (ss[v].empty() ? 0 : (ss[v].rbegin())->fi);
} else {
dp[v] = sd[v];
}
}
void dfs(int v, int fa = -1) {
siz[v] = st[v] == '1';
sd[v] = 0;
for(int y : e[v]) {
if(y == fa) {
continue;
}
dfs(y, v);
siz[v] += siz[y];
ss[v][siz[y]]++;
sd[v] += dp[y];
}
f(v);
}
void inc(int fa, int v, int delta) {
int val = (ss[fa][siz[v]] += delta);
if(val == 0) {
ss[fa].erase(siz[v]);
}
}
void sfd(int v, int fa = -1) {
if(fa != -1) {
sd[fa] -= dp[v];
siz[fa] -= siz[v];
inc(fa, v, -1);
f(fa);
sd[v] += dp[fa];
siz[v] += siz[fa];
inc(v, fa, 1);
f(v);
}
ans[v] = dp[v];
//printf("!%d\n", dp[v]);
for(int y : e[v]) {
if(y == fa) {
continue;
}
sfd(y, v);
}
if(fa != -1) {
sd[v] -= dp[fa];
siz[v] -= siz[fa];
inc(v, fa, -1);
f(v);
sd[fa] += dp[v];
siz[fa] += siz[v];
inc(fa, v, 1);
f(fa);
}
}
int main() {
int n;
scanf("%d", &n);
scanf("%s", st);
for(int i = 0; i < n - 1; i++) {
int x, y;
scanf("%d%d", &x, &y);
x--;
y--;
e[x].pb(y);
e[y].pb(x);
}
dfs(0);
sfd(0);
for(int i = 0; i < n; i++) {
printf("%d%c", ans[i], i == n - 1 ? '\n' : ' ');
}
}
详细
Test #1:
score: 100
Accepted
time: 4ms
memory: 20668kb
input:
5 10101 1 2 2 3 2 4 4 5
output:
2 2 2 3 3
result:
ok 5 number(s): "2 2 2 3 3"
Test #2:
score: 0
Accepted
time: 0ms
memory: 20792kb
input:
1 0
output:
0
result:
ok 1 number(s): "0"
Test #3:
score: 0
Accepted
time: 0ms
memory: 20756kb
input:
1 1
output:
0
result:
ok 1 number(s): "0"
Test #4:
score: 0
Accepted
time: 0ms
memory: 19992kb
input:
2 10 1 2
output:
0 1
result:
ok 2 number(s): "0 1"
Test #5:
score: 0
Accepted
time: 0ms
memory: 19276kb
input:
3 100 2 3 2 1
output:
0 1 2
result:
ok 3 number(s): "0 1 2"
Test #6:
score: 0
Accepted
time: 3ms
memory: 20208kb
input:
4 1100 4 1 4 3 4 2
output:
1 1 3 1
result:
ok 4 number(s): "1 1 3 1"
Test #7:
score: 0
Accepted
time: 0ms
memory: 20872kb
input:
5 10100 4 5 1 3 2 1 3 5
output:
0 2 0 4 2
result:
ok 5 number(s): "0 2 0 4 2"
Test #8:
score: -100
Wrong Answer
time: 0ms
memory: 20988kb
input:
8 11001000 4 2 7 2 5 7 6 2 3 1 6 3 7 8
output:
5 3 5 6 4 4 4 7
result:
wrong answer 4th numbers differ - expected: '5', found: '6'