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 |
---|---|---|---|---|---|---|---|---|---|
#214870 | #2642. color | HHC883 | 60 | 496ms | 13848kb | C++ | 1.3kb | 2024-11-22 22:27:23 | 2024-11-22 23:14:27 |
answer
#include<iostream>
using namespace std;
int n,m;
char col[(int)1e5+5];
int es[(int)2e5+5],nxt[(int)2e5+5],head[(int)1e5+5],cnt;
int deep[(int)1e5+5],fa[(int)1e5+5][25],pre[(int)1e5+5][2];
void link(int u,int v){
es[++cnt]=v;
nxt[cnt]=head[u];
head[u]=cnt;
}
void dfs(int now,int fath){
deep[now]=deep[fath]+1,fa[now][0]=fath;
for(int i=1;i<=20;i++) fa[now][i]=fa[fa[now][i-1]][i-1];
pre[now][0]=pre[fath][0],pre[now][1]=pre[fath][1];
if(col[now]=='H') pre[now][0]++;
else pre[now][1]++;
for(int i=head[now];i;i=nxt[i]){
if(es[i]==fath) continue;
dfs(es[i],now);
}
}
int lca(int x,int y){
if(deep[x]<deep[y]) swap(x,y);
for(int i=20;i>=0;i--) if(deep[fa[x][i]]>=deep[y]) x=fa[x][i];
if(x==y) return x;
for(int i=20;i>=0;i--) if(fa[x][i]!=fa[y][i]) x=fa[x][i],y=fa[y][i];
return fa[x][0];
}
int main(){
ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
cin>>n>>m;
cin>>col+1;
int u,v;
for(int i=1;i<n;i++){
cin>>u>>v;
link(u,v),link(v,u);
}
dfs(1,0);
int x,y;
char ch;
while(m--){
cin>>x>>y>>ch;
int lca_=lca(x,y);
if(ch=='H'){
if(pre[x][0]+pre[y][0]-2*pre[lca_][0]+(col[lca_]=='H')) cout<<1;
else cout<<0;
}else{
if(pre[x][1]+pre[y][1]-2*pre[lca_][1]+(col[lca_]=='D')) cout<<1;
else cout<<0;
}
}
return 0;
}
详细
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Test #1:
score: 10
Accepted
time: 0ms
memory: 1404kb
input:
920 900 HHHHHHHHHHHHHHHHHHHHHHHHHGHHHHHHHHHHHHGHHHHHHHHHHHHHHHHHHHHHHHGHHGHHHHHHHGGHGHHHGHHGHGHHHHHH...
output:
0010100111100111101010001000010101100010001110110110001101100101111000101111100001111001110100001111...
result:
ok single line: '001010011110011110101000100001...1010100111010011101110111010101'
Test #2:
score: 10
Accepted
time: 0ms
memory: 1404kb
input:
927 949 HHHHGHGGGHHHHGHGHHHHHGHGGHGGGHHHGGHHHHHHGGGGGGHHHGGHHHHGHHHHGGGHHHGHGHHHHGGGGHHGHHGGHGHGGGGG...
output:
1111000011110111101101100110110011110101011000110111111111101110110011111011111110110011101010111111...
result:
ok single line: '111100001111011110110110011011...0011001011010111111011111001110'
Test #3:
score: 10
Accepted
time: 0ms
memory: 1408kb
input:
934 998 HHHHGHHHGHHGGGHGGHGHGHHHGHHGHGGGHHHHHGHHGGHHHHHHGHHHGGHHHHHGGHHHGHHHHHHHGHHGHGHGGHHGHGHHHGGH...
output:
1101010111111010110101011111110111111101101100011111001101110111111111011111101001111011001010101111...
result:
ok single line: '110101011111101011010101111111...1011101110011100101111100101110'
Test #4:
score: 10
Accepted
time: 0ms
memory: 1408kb
input:
941 947 HHHHHHHHHHHHHHHGHHHGHHHGHHHHGHHHGHHHHHHHHGHHHHHHHHHGHHHHHGHHHHHGHHGHHHHGHGGHHGHHHHHHHHHHGGHH...
output:
1111111011010110001101010101110100110001000101100101111101110001111111111110111011010101001111101111...
result:
ok single line: '111111101101011000110101010111...0101100011110110011000000000011'
Test #5:
score: 0
Wrong Answer
time: 82ms
memory: 13268kb
input:
92189 98896 HHHHHHHHHGHHHHGGGHGHHHHHHGHHHHHGHHHHHHHHHGHGHHHGHHHHHHGGHHHGHGGHHHHHHHHHGHHHHHHGHGHGHHHG...
output:
1110111111111111111111111111111111111011110111111111111111110111111101111111111111111111111111101111...
result:
wrong answer 1st lines differ - expected: '111011111111111111111111111111...111111111111111111111111...
Test #6:
score: 10
Accepted
time: 81ms
memory: 13736kb
input:
95803 95747 HHHHHHHHHHHHHGHHHHHHHHHHHHHHHHHHGHHGHGHHHHGHGHHHHHHGGHHHHHHHHHHHHGHHHGHHHHHHHHHGHGGHHHHH...
output:
1011011101111111111111111101111111111011101101111110111111101111111011110111111101111111001100101111...
result:
ok single line: '101101110111111111111111110111...1111101101111110111111111001111'
Test #7:
score: 0
Wrong Answer
time: 85ms
memory: 13320kb
input:
92610 90996 HHGGGHHGHGGGHGHGHGGGGGGHGGGHGGHGHGHGGHHHHHGHGGHGHGGGGHGGGHGGHHGHHHGGHGHGGHGGGHGGGGGGGGGG...
output:
1111111111111111111011111111111111111110111111111111100111111111011111111111101101111111111111011111...
result:
wrong answer 1st lines differ - expected: '111111111111111111101111111111...111111001111111111111111...
Test #8:
score: 0
Wrong Answer
time: 88ms
memory: 13788kb
input:
96224 91494 HHHHHHHHGGHHGHHHHHHHHHHHHHGHHHGHHHHHHHHHHHHHHHHHGGHHHHHHGHHHHHHHHHHHHHHHHHGHGGGHGHGHHHHH...
output:
1111010110111100111111111111011011010101011111011101111011111011111011111111111111111111111011111101...
result:
wrong answer 1st lines differ - expected: '111101011011110011111111111101...110101101111111111111110...
Test #9:
score: 0
Wrong Answer
time: 81ms
memory: 13368kb
input:
93031 96743 HHHHHHHHHGHHHHHHHHHHHHHHHHHGGHHHHGHHHGHHHHHHHHHGHHHHHHHHHHHHHHGGHHHHHGGHGHHHGHHHGHHHHHHG...
output:
0100011111101111011111110111001111101111110101110110111111111111111101111110110001011110011111011111...
result:
wrong answer 1st lines differ - expected: '010001111110111101111111011100...111111110111001111110101...
Test #10:
score: 10
Accepted
time: 79ms
memory: 13848kb
input:
96645 93594 HHHHHHHHHGHGHHHHHHHGHHHHGGGHHHHHHHHHHHHHHHHHHGHHHHHGHGHHHHHGHGHHHHHGHHHHGHHHHGGHHGHHHHGH...
output:
0101000110111110011111111111110111101011011101111110111111011011111111111110111110101111111111111111...
result:
ok single line: '010100011011111001111111111111...1110011111111111110110011111111'