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ID	Problem	Submitter	Result	Time	Memory	Language	File size	Submit time	Judge time
#666149	#6838. Assumption is All You Need	wdw	WA	1ms	3560kb	C++20	1.5kb	2024-10-22 16:50:58	2024-10-22 16:51:07

Judging History

你现在查看的是最新测评结果

[2024-10-22 16:51:07]
评测

测评结果：WA
用时：1ms
内存：3560kb

查看

[2024-10-22 16:50:58]
提交

answer

#include <bits/stdc++.h>

using namespace std;
#define int long long
#define ll long long
const int N = 3e4 + 10;
const int mod = 1e9 + 7;
const double eps = 1e-10;
using i64 = int64_t;

void solve() {
    int n;
    cin >> n;
    vector<int> a(n + 5), b(n + 5);
    for (int i = 1; i <= n; i++) {
        cin >> a[i];
    }
    for (int i = 1; i <= n; i++) {
        cin >> b[i];
    }
    vector<pair<int, int>> ans;
    for (int i = 1; i <= n; i++) {
        if (a[i] == b[i])continue;
        int w1 = 0;
        for (int j = n; j >= i; j--) {
            if (w1 != 0) {
                if (a[j] == b[j])continue;
                if (a[j] > b[i]) {
                    swap(a[j], a[w1]);
                    ans.push_back({j, w1});
                    w1 = j;
                }
            }
            if (w1 == 0) {
                if (a[j] == b[i]) {
                    w1 = j;
                }
            }
        }
    }
    int f = 0;
    for (int i = 1; i <= n; i++) {
        if (a[i] != b[i]) {
            f = 1;
            break;
        }
    }
    if (f) {
        cout << -1 << '\n';
        return;
    }
    cout << ans.size() << '\n';
    for (auto j: ans) {
        cout << j.first << " " << j.second << '\n';
    }
}

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    int t;
    t = 1;
    cin >> t;
    while (t--) {
        solve();
    }
}

Source code, Language: C++20

Details

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Test #1:

score: 100

Accepted

time: 0ms

memory: 3560kb

input:

3
2
1 2
2 1
4
4 1 2 3
1 3 2 4
8
8 7 6 5 4 3 2 1
1 8 7 6 5 4 3 2

output:

result:

ok T=3

Test #2:

score: -100

Wrong Answer

time: 1ms

memory: 3560kb

input:

315
10
8 4 6 1 2 9 7 5 10 3
6 7 8 10 5 1 3 2 9 4
10
10 8 2 9 6 5 7 4 3 1
7 1 3 5 9 8 4 10 6 2
6
4 6 5 3 1 2
1 5 4 6 2 3
12
5 9 12 8 10 6 11 4 2 3 1 7
9 2 3 1 5 12 4 7 6 10 8 11
10
4 7 3 2 8 9 6 10 5 1
1 4 8 10 3 7 9 6 2 5
7
1 2 4 5 6 7 3
4 3 5 6 7 2 1
3
1 3 2
2 1 3
7
1 5 3 7 6 4 2
6 5 2 1 3 4 7
1
1
...

output:

-1
-1
-1
-1
-1
-1
-1
-1
0
-1
-1
-1
-1
-1
-1
-1
0
0
-1
-1
-1
-1
-1
-1
-1
-1
-1
3
4 5
2 4
1 2
-1
-1
-1
-1
-1
-1
0
0
-1
-1
-1
-1
-1
-1
0
0
-1
-1
0
-1
-1
-1
1
1 2
-1
2
1 2
2 3
-1
-1
0
-1
-1
2
2 3
3 4
-1
-1
-1
0
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
0
-1
-1
-1
-1
-1
-1
-1
-1
1
1 ...

result:

wrong answer Case #2: Jury has the answer but participant has not