Submission #492349

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
492349	2021-12-07 00:48:20	vuavisao	Trobojnica (COCI19_trobojnica)	C++17	110 / 110	49 ms	7604 KiB

trobojnica

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#include<bits/stdc++.h>
using namespace std;
const int N = 2e5 + 10;
int n, nxt[N], col[N], cnt[3], x[N], y[N], z[N];
string s;
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin >> n >> s;
    for(int i = 0; i < n; i++)
    {
        int C = s[i] - '1';
        col[i] = C;
        cnt[C]++;
        nxt[i] = (i + 1) % n;
    }
    int X = 0;
    for(int i = 0; i < n - 3; i++)
    {
        if(max({cnt[0], cnt[1], cnt[2]}) == n - i)
        {
            cout << "NE";
            return 0;
        }
        while(col[X] == col[nxt[X]] || (cnt[col[X]] == 1 && cnt[col[nxt[X]]] == 1)) X = nxt[X];
 
 
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• Subtask 1: 20 / 20
• Subtask 2: 40 / 40
• Subtask 3: 50 / 50