ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#214003 | #2739. 阿空的核聚变 | a_sad_soul | 100 | 2578ms | 118848kb | C++11 | 946b | 2024-11-14 22:09:27 | 2024-11-14 23:09:52 |
answer
#include<bits/stdc++.h>
using namespace std;
const int MAXN =5e5+10;
char s[MAXN];
int nxt[MAXN][30];
int p[MAXN][30];
int n;
void Init(){
for(int i=1;i<=n+4;++i){
for(int j=0;j<=20;++j)nxt[i][j]=n+3;
for(int j=0;j<=26;++j)p[i][j]=n+3;
}
for(int i=n;i;--i){
p[i][s[i]-'a']=i+1;
for(int j=s[i]-'a'+1;j<=26;++j)p[i][j]=p[p[i][j-1]][j-1];
nxt[i][0]=p[i][26];
for(int j=1;j<=20;++j)nxt[i][j]=nxt[nxt[i][j-1]][j-1];
for(int j=0;j<26;++j)if(p[i][j]==n+3)p[i][j]=p[nxt[i][0]][j];
}
}
bool check(int l,int r){
for(int i=20;~i;--i){
if(nxt[l][i]<=r+1)l=nxt[l][i];
if(l==r+1)return true;
}
return false;
}
int main(){
scanf("%s",s+1);n=strlen(s+1);Init();
int q;scanf("%d",&q);
while(q--){
int l,r;scanf("%d%d",&l,&r);
if(check(l,r))puts("Yes");
else puts("No");
}
return 0;
}
Details
小提示:点击横条可展开更详细的信息
Test #1:
score: 10
Accepted
time: 0ms
memory: 1200kb
input:
wwwwyyyvttttutsrqquuusstttuvutrrsvvwxvvwvvvvwuuvwvvwwuuurrssswywvvwvurrstxwvvxxxxxxyzvvvssrrsttvuuwy...
output:
No No No No No No No No Yes No No No No No No No No No No No No No No No No No No No No No No No No ...
result:
ok 3000 lines
Test #2:
score: 10
Accepted
time: 0ms
memory: 1200kb
input:
wvvvvwwttuvwwyyxxwvvwwzywvttuusstuuwyyywwxyywvuttuuuttwxwwyyyxxzzxxxwvuuyyyyzvvvvwvvvvwwwztssuuuwwwy...
output:
No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No Y...
result:
ok 3000 lines
Test #3:
score: 10
Accepted
time: 0ms
memory: 1200kb
input:
zywwxyyzyyvuttwvvwxutssvuuvyyzzyxxyxxzzyyxxyxxxxzyxxwuuvwwxwwyxxyvvttuvxyyyxxyyyyyxxyyxwwxxyyyvuuwww...
output:
No No No No No No No No No No No No No No No No Yes No No No No No No No No No No No No No No No No ...
result:
ok 3000 lines
Test #4:
score: 10
Accepted
time: 2ms
memory: 1888kb
input:
zzzyywwxyzxxyzyyzzyyyyzyyzyxxzzzzyyyyyxxyyzzyxxzzyyzzzyyzyyzzzzyyyyzzzxwwwwxzzzzyyzxxyyyzzyyyyyyzzzy...
output:
No No No Yes No Yes No No Yes No Yes No No No No No No Yes No No No No No No No No No No Yes No No N...
result:
ok 3000 lines
Test #5:
score: 10
Accepted
time: 0ms
memory: 1888kb
input:
yxxyxxzzyyxxyyxxxxxxxwvuuxvvwyyxxxxyyyyxxwwxzyxxyxxyyyxwvuttywvvxxxywwxywwxxwuuuuzxxyxwwxvvwwuuvxyww...
output:
No Yes No No No No No No No No No No No No No No No No Yes No No No No No No No No No No No No No No...
result:
ok 3000 lines
Test #6:
score: 10
Accepted
time: 0ms
memory: 1884kb
input:
xxyywvvxyuuuuvvwwxxxttuvvvzvvwwwyyywwsstuuttvvwvttuwvurrrrsqqrxxvvttttvxuuvwvusstvvxwwyxxzzxwwxutsss...
output:
No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No N...
result:
ok 3000 lines
Test #7:
score: 10
Accepted
time: 525ms
memory: 118848kb
input:
yyzzzyyzzzyyzzzzyzzyyzyyzzyzzyzzzzyyzyyzzyzyzyyzyzyzzzzzzyzzyzzzyyyzyyzzyyyzzyzyyzzzyyzyyzzzyzyzyzyy...
output:
No Yes No No Yes No No No No No No No No No No No No No No No No No No No No No No No No No No No No...
result:
ok 1000000 lines
Test #8:
score: 10
Accepted
time: 516ms
memory: 118844kb
input:
yzzzzyzzyyzyzzzyyyzyyzyzzzyzyzzzzzzzyyyzyyzyzzzzyzzyyyyyzyyzyzyyzzzyzzyzzyzzzzzyyzyyyyyzyyyzzyzyzzyy...
output:
No No No No No No No No No No No No No No No No No No No No No No No No No No Yes No Yes Yes No No N...
result:
ok 1000000 lines
Test #9:
score: 10
Accepted
time: 754ms
memory: 118848kb
input:
yyyyxxyzxxxxxxwvuuvvwzxxwwvuuvuuxutssvutssuttxxyxxxvvttuvxxywwxxwwyywwxyyywwxzyxwwxxywwwwyyyywwxyyvv...
output:
No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No N...
result:
ok 1000000 lines
Test #10:
score: 10
Accepted
time: 781ms
memory: 118844kb
input:
ywwxyyxxyzzzyxxyyyyzzzzzzyyzzyxxzzyyyxxzzzywwxzzyyzwwxxwwyyzyyzzzyyzyyyxwwyxxyyzyyyxxyyzyxxyyzzywwxw...
output:
No No No No No No No No Yes No No No No No Yes No No Yes No No No Yes No No No No Yes No No No No No...
result:
ok 1000000 lines