#include <bits/stdc++.h>
using namespace std;
int main(){
int n,q;
cin >> n >> q;
vector<int> a(n);
for(int i=0;i<n;i++) cin >> a[i];
while(q--){
int action;
cin >> action;
if(action==1){
int pos,ch;
cin >> pos >> ch;
a[pos-1]=ch;
}
else{
int l,u;
cin >> l >> u;
if((u-l)%2==1) cout << 0<<"\n";
else{
int xum=0;
for(int i=l-1;i<u;i+=2){
xum=xum^a[i];
}
cout << xum<<"\n";
}
}
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
308 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
308 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
8 ms |
340 KB |
Output is correct |
12 |
Correct |
8 ms |
340 KB |
Output is correct |
13 |
Correct |
12 ms |
340 KB |
Output is correct |
14 |
Correct |
12 ms |
440 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
1081 ms |
5392 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
308 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
8 ms |
340 KB |
Output is correct |
12 |
Correct |
8 ms |
340 KB |
Output is correct |
13 |
Correct |
12 ms |
340 KB |
Output is correct |
14 |
Correct |
12 ms |
440 KB |
Output is correct |
15 |
Execution timed out |
1081 ms |
5392 KB |
Time limit exceeded |
16 |
Halted |
0 ms |
0 KB |
- |