#include <bits/stdc++.h>
using namespace std;
const int N = 3e5 + 10;
int n, q, store[N];
string s;
pair<int, int> last[N];
int main(){
cin >> n >> q >> s;
if (n <= 100 and q <= 100){
vector<string> vec;
vec.push_back(s);
for (int i = 0; i < q; i ++){
string qx;
cin >> qx;
if (qx[0] == 't'){
int x;
cin >> x;
x--;
s[x] = '1' - s[x] + '0';
}
else{
int a, b;
cin >> a >> b;
a--, b--;
int ans = 0;
for (string x : vec){
bool good = 1;
for (int i = a; i < b; i ++)
if (x[i] == '0')
good = 0;
ans += good;
}
cout << ans << endl;
}
vec.push_back(s);
}
return 0;
}
for (int i = 0; i < n; i ++)
if (s[i] == '1')
last[i] = {0, -1};
int tme = 0;
for (int i = 0; i < q; i ++){
string qx;
cin >> qx;
if (qx[0] == 't'){
int x;
cin >> x;
x--;
if (s[x] == '1'){
last[x].second = tme;
s[x] = '0';
store[x] += last[x].second - last[x].first + 1;
}
else{
last[x] = {tme + 1, -1};
s[x] = '1';
}
}
else{
int a, b;
cin >> a >> b;
a--, b--;
int val = 0;
if (last[a].second == -1 and last[a].first != -1)
val = tme - last[a].first + 1;
// cout << a << " : " << last[a].first << " " << last[a].second << ", cur time = " << tme << endl;
cout << store[a] + val << endl;
}
tme++;
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
245 ms |
1348 KB |
Output is correct |
2 |
Correct |
241 ms |
1360 KB |
Output is correct |
3 |
Correct |
242 ms |
1620 KB |
Output is correct |
4 |
Correct |
275 ms |
4848 KB |
Output is correct |
5 |
Correct |
291 ms |
4076 KB |
Output is correct |
6 |
Correct |
255 ms |
4848 KB |
Output is correct |
7 |
Correct |
435 ms |
1264 KB |
Output is correct |
8 |
Correct |
441 ms |
5144 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
2 ms |
348 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
245 ms |
1348 KB |
Output is correct |
9 |
Correct |
241 ms |
1360 KB |
Output is correct |
10 |
Correct |
242 ms |
1620 KB |
Output is correct |
11 |
Correct |
275 ms |
4848 KB |
Output is correct |
12 |
Correct |
291 ms |
4076 KB |
Output is correct |
13 |
Correct |
255 ms |
4848 KB |
Output is correct |
14 |
Correct |
435 ms |
1264 KB |
Output is correct |
15 |
Correct |
441 ms |
5144 KB |
Output is correct |
16 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
17 |
Halted |
0 ms |
0 KB |
- |