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Submission #631695

# Submission time Handle Problem Language Result Execution time Memory
631695 2022-08-18T12:47:06 Z smartmonky XORanges (eJOI19_xoranges) C++14
0 / 100
 1000 ms 1484 KB 
#include <iostream>
#include <algorithm>
#include <vector>
#include <math.h>
#include <set>
#include <map>

#define ll long long
#define ff first
#define ss second
#define pb push_back
#define all(x) (x).begin(),(x).end()

using namespace std;

main(){
    int n,q;
    cin >> n>>q;
    vector <int> v(n+1);
    for(int i=1;i<=n;i++)
		cin >>v[i];
	while(q--){
		int type,x,y;
		cin >>type >>x >>y;
		if(type==1)
			v[x]=y;
		else{
			if(y==x)
				cout<<v[x] <<endl;
			else{
				int res=0;
				if(((y-x+2)/2)%2==0){
					for(int i=x;i<=y;i++)
						if( (y-x+2)/2!=i)
							res^=v[i];
				}else{
					res=((v[x]^v[(y-x+2)/2])^v[y]);
				}
				cout <<res <<endl;
			}
		}
	}
}

Compilation message

xoranges.cpp:16:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   16 | main(){
      | ^~~~

Subtask #1
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 18.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1091 ms 1484 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -