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Submission #787153

# Submission time Handle Problem Language Result Execution time Memory
787153 2023-07-18T21:28:04 Z ThylOne XORanges (eJOI19_xoranges) C++14
55 / 100
 1000 ms 2452 KB 
#include<bits/stdc++.h>

using namespace std;
#define int long long
signed main(){
	int n;cin>>n;
	int q;cin>>q;
	vector<int> nums(n);
	for(int i = 0 ; i < n ; i++){
		cin>>nums[i];
	}
	for(int _=0;_<q;_++){
		int type;cin>>type;
		if(type==1){
			int pos;cin>>pos;pos--;
			int val;cin>>val;
			nums[pos]=val;
		}else{
			int l,r;cin>>l>>r;
			l--;r--;
			int ans=0;
			
			for(int i = l;i<=r;i++){
				int left = abs(l-i)+1;
				int right= abs(r-i)+1;
				
				int parity = (left*right)&1;
				if(parity){
					ans^=nums[i];
				}
			}
			cout<<ans<<endl;
		}
	}
	return 0;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 296 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

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 2 ms 308 KB Output is correct
4 Correct 2 ms 212 KB Output is correct
5 Correct 2 ms 304 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 296 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 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 2 ms 308 KB Output is correct
9 Correct 2 ms 212 KB Output is correct
10 Correct 2 ms 304 KB Output is correct
11 Correct 12 ms 456 KB Output is correct
12 Correct 11 ms 468 KB Output is correct
13 Correct 32 ms 440 KB Output is correct
14 Correct 33 ms 456 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1077 ms 2452 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 212 KB Output is correct
2 Correct 1 ms 296 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 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 2 ms 308 KB Output is correct
9 Correct 2 ms 212 KB Output is correct
10 Correct 2 ms 304 KB Output is correct
11 Correct 12 ms 456 KB Output is correct
12 Correct 11 ms 468 KB Output is correct
13 Correct 32 ms 440 KB Output is correct
14 Correct 33 ms 456 KB Output is correct
15 Execution timed out 1077 ms 2452 KB Time limit exceeded
16 Halted 0 ms 0 KB -