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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#828199 | #8948. 报复社会 | chenxinyang2006 | 0 | 48ms | 9972kb | C++23 | 1.9kb | 2024-12-23 14:32:59 | 2024-12-23 14:33:01 |
Judging History
answer
#include <bits/stdc++.h>
#define rep(i,j,k) for(int i=(j);i<=(k);i++)
#define per(i,j,k) for(int i=(j);i>=(k);i--)
#define uint unsigned int
#define ll long long
#define ull unsigned long long
#define db double
#define ldb long double
#define pii pair<int,int>
#define pll pair<ll,ll>
#define mkp make_pair
#define eb emplace_back
#define SZ(S) (int)S.size()
//#define mod 998244353
//#define mod 1000000007
#define inf 0x3f3f3f3f
#define linf 0x3f3f3f3f3f3f3f3f
using namespace std;
template <class T>
void chkmax(T &x,T y){
if(x < y) x = y;
}
template <class T>
void chkmin(T &x,T y){
if(x > y) x = y;
}
inline int popcnt(int x){
return __builtin_popcount(x);
}
inline int ctz(int x){
return __builtin_ctz(x);
}
/*ll power(ll p,int k = mod - 2){
ll ans = 1;
while(k){
if(k % 2 == 1) ans = ans * p % mod;
p = p * p % mod;
k /= 2;
}
return ans;
}*/
int T,n;
int fa[500005],deg[500005],col[500005],a[500005];
set <int> S;
void solve(){
scanf("%d",&n);
fill(deg,deg + n + 1,0);
fill(a,a + n + 1,0);
rep(u,2,n){
scanf("%d",&fa[u]);
deg[fa[u]]++;
}
rep(u,1,n) scanf("%d",&col[u]);
if(n == 1){
if(!col[1]) printf("Alice\n");
else printf("Bob\n");
return;
}
rep(u,1,n){
if(!deg[u]){
if(!col[u]) a[fa[u]]++;
else a[fa[u]]--;
}
}
rep(u,1,n) if(fa[u] == 1 && deg[u]) S.insert(a[u]);
// assert(S.empty());
int cur = a[1],op = 1;
while(!S.empty()){
if(!op){
if(cur < 0){
cur++;
}else{
auto it = S.begin();
cur += *it;
S.erase(it);
}
}else{
if(cur > 0){
cur--;
}else{
auto it = prev(S.end());
cur += *it;
S.erase(it);
}
}
op ^= 1;
}
// printf("cur=%d\n",cur);
if(cur > 0 || (!cur && !op)) printf("Alice\n");
else printf("Bob\n");
}
int main(){
#ifdef cxy
freopen("test.in","r",stdin);
#endif
scanf("%d",&T);
while(T--) solve();
return 0;
}
Details
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Subtask #1:
score: 0
Wrong Answer
Test #1:
score: 20
Accepted
time: 0ms
memory: 9972kb
input:
1 19 1 2 3 3 2 6 7 7 6 6 6 2 2 2 1 1 1 1 0 0 0 0 0 0 0 1 1 0 0 1 1 1 1 0 0 0 0
output:
Bob
result:
ok "Bob"
Test #2:
score: 20
Accepted
time: 2ms
memory: 9952kb
input:
1 20 1 1 3 2 4 1 4 4 1 7 1 6 3 12 6 12 8 5 7 1 0 1 1 1 0 0 1 1 0 0 1 0 1 0 1 0 0 0 1
output:
Alice
result:
ok "Alice"
Test #3:
score: 0
Wrong Answer
time: 1ms
memory: 9964kb
input:
1 19 1 2 3 4 5 1 1 8 8 3 7 3 13 3 15 10 2 17 0 0 1 0 0 0 0 1 1 1 1 0 0 0 0 0 0 1 0
output:
Bob
result:
wrong answer 1st words differ - expected: 'Alice', found: 'Bob'
Subtask #2:
score: 0
Wrong Answer
Test #50:
score: 0
Wrong Answer
time: 48ms
memory: 9900kb
input:
10000 49 1 2 2 1 5 5 5 5 5 5 1 12 12 12 12 12 12 1 19 19 19 19 19 19 19 1 27 27 1 1 31 1 33 33 33 33 33 33 33 1 1 1 1 1 1 1 1 1 0 0 0 0 1 1 1 1 1 1 1 1 1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 0 0 1 0 1 0 1 1 1 1 1 1 1 1 1 1 50 1 2 2 2 2 2 1 8 8 8 1 12 1 1 15 15 15 15 1 1 21 21 21 21 1 26 1 1 29 29...
output:
Bob Alice Bob Alice Bob Alice Alice Bob Alice Bob Bob Alice Bob Bob Alice Alice Bob Bob Alice Alice Bob Alice Alice Alice Bob Alice Bob Alice Bob Alice Alice Bob Alice Bob Alice Alice Bob Alice Alice Bob Bob Bob Bob Bob Bob Bob Alice Bob Bob Bob Alice Bob Alice Alice Bob Bob Alice Bob Alice Bob Bob ...
result:
wrong answer 3rd words differ - expected: 'Alice', found: 'Bob'
Subtask #3:
score: 0
Wrong Answer
Test #73:
score: 0
Wrong Answer
time: 44ms
memory: 9896kb
input:
10000 50 1 2 1 4 5 6 5 4 9 4 11 4 1 14 15 16 16 16 15 14 21 21 21 14 14 14 14 14 1 30 30 30 30 30 1 36 37 37 37 36 41 41 41 36 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 1 1 0 1 1 1 1 1 1 1 1 0 1 0 1 0 1 0 0 0 0 1 0 0 0 0 1 1 0 1 0 1 50 1 2 3 4 5 4 7 8 7 4 11 12 11 14 11 16 11 18 11 4 21 4 4 4 3 ...
output:
Bob Bob Alice Bob Bob Bob Bob Bob Bob Bob Alice Bob Alice Alice Bob Alice Bob Alice Alice Bob Alice Alice Alice Alice Alice Bob Alice Alice Bob Bob Bob Alice Bob Bob Alice Bob Alice Alice Bob Alice Bob Bob Bob Alice Alice Alice Bob Alice Alice Alice Bob Alice Alice Bob Bob Bob Alice Alice Alice Bob ...
result:
wrong answer 1st words differ - expected: 'Alice', found: 'Bob'
Subtask #4:
score: 0
Skipped
Dependency #1:
0%