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Submission #466143

# Submission time Handle Problem Language Result Execution time Memory
466143 2021-08-18T06:24:14 Z Stickfish XORanges (eJOI19_xoranges) C++17
12 / 100
 1000 ms 1324 KB 
#include <iostream>
using namespace std;

const int MAXN = 2e5 + 123;
int a[MAXN];

signed main(){
	int n, q;
	cin >> n >> q;
	for(int i = 0; i < n; ++i){
		cin >> a[i];
	}
	while(q--){
		int t;
		cin >> t;
		if(t == 1){
			int i, x;
			cin >> i >> x;
			--i;
			a[i] = x;
		} else {
			int l, r;
			cin >> l >> r;
			--l;
			int ans = 0;
			for(int l0 = l; l0 < r; ++l0){
				for(int r0 = l0 + 1; r0 <= r; ++r0){
					for(int i = l0; i < r0; ++i)
						ans ^= a[i];
				}
			}
			cout << ans << '\n';
		}
	}
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 2 ms 204 KB Output is correct
4 Correct 6 ms 204 KB Output is correct
5 Correct 6 ms 204 KB Output is correct

Subtask #2
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 682 ms 204 KB Output is correct
2 Correct 573 ms 204 KB Output is correct
3 Correct 778 ms 204 KB Output is correct
4 Execution timed out 1080 ms 316 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 2 ms 204 KB Output is correct
4 Correct 6 ms 204 KB Output is correct
5 Correct 6 ms 204 KB Output is correct
6 Correct 682 ms 204 KB Output is correct
7 Correct 573 ms 204 KB Output is correct
8 Correct 778 ms 204 KB Output is correct
9 Execution timed out 1080 ms 316 KB Time limit exceeded
10 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1087 ms 1324 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 2 ms 204 KB Output is correct
4 Correct 6 ms 204 KB Output is correct
5 Correct 6 ms 204 KB Output is correct
6 Correct 682 ms 204 KB Output is correct
7 Correct 573 ms 204 KB Output is correct
8 Correct 778 ms 204 KB Output is correct
9 Execution timed out 1080 ms 316 KB Time limit exceeded
10 Halted 0 ms 0 KB -