oj.uz

Submission #466754

# Submission time Handle Problem Language Result Execution time Memory
466754 2021-08-20T15:49:27 Z mtxas XORanges (eJOI19_xoranges) C++14
30 / 100
 1000 ms 460 KB 
#include <bits/stdc++.h>
 
#define ll long long
#define pii pair<int, int>
#define fi first
#define se second
#define pll pair<ll, ll>
#define mii map<int, int>
#define vi vector<int>
#define vll vector<ll>
#define pb push_back
#define all(a) a.begin(), a.end()
#define sz(x) ((int)x.size())
#define turbo() cin.tie(0); cout.tie(0); ios_base::sync_with_stdio(false)
#define _fre() freopen("input.txt", "r", stdin)
#define _for(a, b, c) for(int (a) = (b); (a) < (c); (a)++)
#define _foreq(a, b, c) for(int (a) = (b); (a) <= (c); (a)++)
#define _forneq(a, b, c) for(int (a) = (b); (a) >= (c); (a)--)
#define _forn(a, b, c) for(int (a) = (b); (a) > (c); (a)--)
using namespace std;
/**********************************************************************************
                                STRUCTS
**********************************************************************************/
 
/**********************************************************************************
                               VARIABLES
**********************************************************************************/
const int maxn = 5001;
int a[maxn];
int t[maxn<<1];
int startIdRes[maxn];
/**********************************************************************************
                               FUNCTIONS
**********************************************************************************/
 
/**********************************************************************************
                                 MAIN
**********************************************************************************/
int main(){
   // _fre();
    turbo();
    int n, q; cin>>n>>q;
    _foreq(i, 1, n) cin>>a[i];
    _for(g, 0, q){
        int type; cin>>type;
        if(type == 1){
            int i, val; cin>>i>>val;
            a[i] = val;
            //cout<<"a["<<i<<"] = "<<val<<endl;
        }
        else if(type == 2){
            int l, r; cin>>l>>r;
           // cout<<"query("<<l<<", "<<r<<")\n";
            int reply = 0;
            _foreq(i, 0, r) startIdRes[i] = 0;
            _foreq(len, 1, r-l+1){
                _foreq(startId, l, r-len+1){
                    int toXor = 0;
                    /*//cout<<"range("<<startId<<", "<<startId+len-1<<")\n";
                    _foreq(i, startId, startId+len-1){
                        toXor ^= a[i];
                    }*/
                    toXor = startIdRes[startId] ^ a[startId+len-1];
                    reply ^= toXor;
                    startIdRes[startId] = toXor;
                }
            }
            cout<<reply<<'\n';
        }
    }
}

Compilation message

xoranges.cpp: In function 'int main()':
xoranges.cpp:17:33: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   17 | #define _foreq(a, b, c) for(int (a) = (b); (a) <= (c); (a)++)
      |                                 ^
xoranges.cpp:43:5: note: in expansion of macro '_foreq'
   43 |     _foreq(i, 1, n) cin>>a[i];
      |     ^~~~~~
xoranges.cpp:16:31: warning: unnecessary parentheses in declaration of 'g' [-Wparentheses]
   16 | #define _for(a, b, c) for(int (a) = (b); (a) < (c); (a)++)
      |                               ^
xoranges.cpp:44:5: note: in expansion of macro '_for'
   44 |     _for(g, 0, q){
      |     ^~~~
xoranges.cpp:17:33: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   17 | #define _foreq(a, b, c) for(int (a) = (b); (a) <= (c); (a)++)
      |                                 ^
xoranges.cpp:55:13: note: in expansion of macro '_foreq'
   55 |             _foreq(i, 0, r) startIdRes[i] = 0;
      |             ^~~~~~
xoranges.cpp:17:33: warning: unnecessary parentheses in declaration of 'len' [-Wparentheses]
   17 | #define _foreq(a, b, c) for(int (a) = (b); (a) <= (c); (a)++)
      |                                 ^
xoranges.cpp:56:13: note: in expansion of macro '_foreq'
   56 |             _foreq(len, 1, r-l+1){
      |             ^~~~~~
xoranges.cpp:17:33: warning: unnecessary parentheses in declaration of 'startId' [-Wparentheses]
   17 | #define _foreq(a, b, c) for(int (a) = (b); (a) <= (c); (a)++)
      |                                 ^
xoranges.cpp:57:17: note: in expansion of macro '_foreq'
   57 |                 _foreq(startId, l, r-len+1){
      |                 ^~~~~~

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 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 328 KB Output is correct
2 Correct 8 ms 328 KB Output is correct
3 Correct 10 ms 332 KB Output is correct
4 Correct 39 ms 324 KB Output is correct
5 Correct 39 ms 204 KB Output is correct

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 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 9 ms 328 KB Output is correct
7 Correct 8 ms 328 KB Output is correct
8 Correct 10 ms 332 KB Output is correct
9 Correct 39 ms 324 KB Output is correct
10 Correct 39 ms 204 KB Output is correct
11 Execution timed out 1073 ms 332 KB Time limit exceeded
12 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 460 KB Execution killed with signal 11
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 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 9 ms 328 KB Output is correct
7 Correct 8 ms 328 KB Output is correct
8 Correct 10 ms 332 KB Output is correct
9 Correct 39 ms 324 KB Output is correct
10 Correct 39 ms 204 KB Output is correct
11 Execution timed out 1073 ms 332 KB Time limit exceeded
12 Halted 0 ms 0 KB -