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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#180048 | #6303. Inversion | ucup-team045# | WA | 32ms | 19528kb | C++20 | 1.4kb | 2023-09-15 15:02:18 | 2023-09-15 15:02:18 |
Judging History
answer
#include<iostream>
#include<cstring>
#include<vector>
#include<random>
#include<algorithm>
using namespace std;
using LL = long long;
int dp[2005][2005];
int main(){
// #ifdef LOCAL
// freopen("data.in", "r", stdin);
// freopen("data.out", "w", stdout);
// #endif
cin.tie(0);
cout.tie(0);
ios::sync_with_stdio(0);
int n;
cin >> n;
memset(dp, -1, sizeof dp);
auto ask = [&](int l, int r){
if (l >= r) return 0;
if (dp[l][r] != -1) return dp[l][r];
cout << "? " << l + 1 << ' ' << r + 1 << endl;
int t;
cin >> t;
return dp[l][r] = t;
};
vector<int> id(n);
for(int i = 0; i < n; i++) id[i] = i;
auto check = [&](int a, int b){
if (a < b){
int c1 = ask(a, b);
int c2 = ask(a + 1, b);
int c3 = ask(a, b - 1);
int c4 = ask(a + 1, b - 1);
return c1 ^ c2 ^ c3 ^ c4;
}
swap(a, b);
int c1 = ask(a, b);
int c2 = ask(a + 1, b);
int c3 = ask(a, b - 1);
int c4 = ask(a + 1, b - 1);
return c1 ^ c2 ^ c3 ^ c4 ^ 1;
};
stable_sort(id.begin(), id.end(), [&](int x, int y){
return !check(x, y);
});
vector<int> ans(n);
for(int i = 0; i < n; i++)
ans[id[i]] = i;
cout << "! ";
for(auto x : ans) cout << x + 1 << ' ';
cout << endl;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 19528kb
input:
3 0 1 0
output:
? 1 2 ? 2 3 ? 1 3 ! 2 3 1
result:
ok OK, guesses=3
Test #2:
score: -100
Wrong Answer
time: 32ms
memory: 19292kb
input:
1993 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 1 1 1 0 1 0 1 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 0 1 0 0 1 0 1 0 1 0 1 1 1 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 1 1 1 0 1 1 1 0 0 1 0 1 0 1 1 0 0 0 0 0 0 1 0 0 1 1 0 1 1 0 1 1 1 1 1 0 0 0 0 0 1 0 1 1 1 0 1 1 0 1 1 1 1 0 1 0 1 1 1 1 0 0 0 1 0 0 0 1 1 0 1 1 1 0 0 0 1...
output:
? 1 2 ? 1 3 ? 2 3 ? 1 4 ? 2 4 ? 3 4 ? 1 5 ? 2 5 ? 5 6 ? 4 6 ? 4 5 ? 3 6 ? 3 5 ? 2 6 ? 1 6 ? 5 7 ? 6 7 ? 8 9 ? 9 10 ? 10 11 ? 8 11 ? 9 11 ? 8 10 ? 10 12 ? 11 12 ? 8 12 ? 9 12 ? 10 13 ? 11 13 ? 8 13 ? 9 13 ? 10 14 ? 11 14 ? 13 14 ? 8 14 ? 9 14 ? 12 14 ? 12 13 ? 15 16 ? 15 17 ? 16 17 ? 17 18 ? 16 18 ? ...
result:
wrong output format Unexpected end of file - int32 expected