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Submission #976820

# Submission time Handle Problem Language Result Execution time Memory
976820 2024-05-07T07:04:02 Z Isam XORanges (eJOI19_xoranges) C++17
55 / 100
 1000 ms 3924 KB 
#include<bits/stdc++.h>
using namespace std;

constexpr int sz = 2e5 + 5;

int n, q, a[sz];

signed main(){
	ios_base::sync_with_stdio(0), cin.tie(0);
	cin >> n >> q;
	for(register int i = 1; i <= n; ++i){
		cin >> a[i];
	}
	
	
	
	
	int type, l, r;
		
	while(q--){
		cin >> type >> l >> r;
		if(type == 1){
			a[l] = r;
		}else{
			int ans(0);
			for(register int i = l; i <= r; ++i){
				
				int x = ((i - l + 1) & 1) * ((r - i + 1) & 1);
				if(x & 1) ans ^= a[i];
				
			}
			
			cout << ans << '\n';
			
		}
		
	}
	
	
	
	
}

Compilation message

xoranges.cpp: In function 'int main()':
xoranges.cpp:11:19: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   11 |  for(register int i = 1; i <= n; ++i){
      |                   ^
xoranges.cpp:26:21: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   26 |    for(register int i = l; i <= r; ++i){
      |                     ^

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 5 ms 604 KB Output is correct
12 Correct 4 ms 604 KB Output is correct
13 Correct 16 ms 480 KB Output is correct
14 Correct 16 ms 592 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1064 ms 3924 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 5 ms 604 KB Output is correct
12 Correct 4 ms 604 KB Output is correct
13 Correct 16 ms 480 KB Output is correct
14 Correct 16 ms 592 KB Output is correct
15 Execution timed out 1064 ms 3924 KB Time limit exceeded
16 Halted 0 ms 0 KB -