Submission #1284206

#	Time	Username	Problem	Language	Result	Execution time	Memory
1284206		hynmj	Bliskost (COI23_bliskost)	C++20	0 / 100	2 ms	568 KiB

Main

#include <bits/stdc++.h>
#define int long long
using namespace std;
const long long N = 2e5 + 5;
int a[N];

void solve()
{
    int n, q;
    string s, t;
    cin >> n >> q >> s >> t;
    int sum = 0;
    for (int i = 0; i < n; i++)
    {
        sum += s[i] - t[i] + 26;
    }
    cout << ((sum % 2 == 0) ? "da" : "ne") << endl;
    int k;
    char c;
    for (int i = 0; i < q; i++)
    {
        cin >> k >> c;
        k--;
        sum -= s[k] - t[k];
        sum += 26;
        s[k] = c;

        sum += s[k] - t[k];
        sum += 26;
        cout << ((sum % 2 == 0) ? "da" : "ne") << endl;
    }
}

signed main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(NULL);
    cout.tie(NULL);
    int t = 1;
    // cin >> t;
    for (int i = 1; i <= t; i++)
    {
        // cout << "Case #" << i << ':' << ' ';
        solve();
        cout << endl;
    }
    return 0;
}

• Subtask 1: 0 / 7
• Subtask 2: 0 / 8
• Subtask 3: 0 / 13
• Subtask 4: 0 / 12
• Subtask 5: 0 / 17
• Subtask 6: 0 / 43