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 |
---|---|---|---|---|---|---|---|---|---|
#213916 | #2739. 阿空的核聚变 | WZRYWZWY | 100 | 1929ms | 99316kb | C++11 | 1.5kb | 2024-11-14 18:46:54 | 2024-11-14 23:00:43 |
answer
#include <bits/stdc++.h> // https://atcoder.jp/contests/mujin-pc-2017/submissions/1131727
using namespace std;
const int N = 500010;
const int LOG = 21;
const int ALPHA = 28;
int pr[N][LOG];
int f[N][ALPHA];
int a[N];
char foo[N];
int main() {
scanf("%s", foo);
int len = strlen(foo);
for (int i = 0; i < len; i++) {
a[i] = foo[i] - 'a';
}
for (int c = 0; c <= 26; c++) {
f[len][c] = -1;
}
for (int i = len - 1; i >= 0; i--) {
for (int c = 0; c <= 26; c++) {
f[i][c] = -1;
}
f[i][a[i]] = i + 1;
bool err = false;
for (int c = a[i] + 1; c <= 26; c++) {
int at = f[f[i][c - 1]][c - 1];
if (at == -1) {
err = true;
break;
}
f[i][c] = at;
}
if (!err) {
for (int c = 0; c < a[i]; c++) {
f[i][c] = f[f[i][26]][c];
}
}
}
for (int i = 0; i <= len; i++) {
pr[i][0] = f[i][26];
}
for (int j = 1; j < LOG; j++) {
for (int i = 0; i <= len; i++) {
if (pr[i][j - 1] == -1) {
pr[i][j] = -1;
} else {
pr[i][j] = pr[pr[i][j - 1]][j - 1];
}
}
}
int tt;
scanf("%d", &tt);
while (tt--) {
int x, y;
scanf("%d %d", &x, &y);
x--;
for (int j = LOG - 1; j >= 0; j--) {
if (pr[x][j] == -1) {
continue;
}
if (pr[x][j] <= y) {
x = pr[x][j];
}
}
puts((x == y) ? "Yes" : "No");
}
return 0;
}
详细
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: 1ms
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: 0ms
memory: 1772kb
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: 1768kb
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: 1768kb
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: 479ms
memory: 99312kb
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: 478ms
memory: 99316kb
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: 472ms
memory: 99312kb
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: 499ms
memory: 99316kb
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