Submission #198066

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
198066	2020-01-24 15:12:26	model_code	Trobojnica (COCI19_trobojnica)	C++17	110 / 110	89 ms	7708 KiB

trobojnica

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