# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
935564 | dilanyan | Kamenčići (COCI21_kamencici) | C++17 | 0 ms | 344 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
//-------------dilanyan------------\\
#define _CRT_SECURE_NO_WARNINGS
#include<bits/stdc++.h>
#include<stdio.h>
using namespace std;
//------------------Kargpefines--------------------\\
#define ll long long
#define pb push_back
#define all(u) (u).begin(), (u).end()
#define pqueue priority_queue
#define upper upper_bound
#define lower lower_bound
#define umap unordered_map
#define uset unordered_set
void KarginSet(string name = "") {
ios_base::sync_with_stdio(false); cin.tie(NULL);
if (name.size()) {
freopen((name + ".in").c_str(), "r", stdin);
freopen((name + ".out").c_str(), "w", stdout);
}
}
//-------------------KarginConstants------------------\\
const ll mod = 1000000007;
const ll inf = 1e9;
//-------------------KarginCode-----------------------\\
const int N = 200005;
void KarginSolve() {
int n, k;
cin >> n >> k;
string str; cin >> str;
int s = 0, e = str.size() - 1;
int c1 = 0, c2 = 0;
bool flag = true;
while (s <= e) {
if (flag) {
if (str[s] == 'P') s++;
else if (str[e] == 'P') e--;
else {
if (s + 1 <= e && str[s] == str[s + 1]) s++, c1++;
else if (s <= e - 1 && str[e] == str[e - 1]) e--, c1++;
else e--, c1++;
}
}
else {
if (str[s] == 'P') s++;
else if (str[e] == 'P') e--;
else {
if (s + 1 <= e && str[s] == str[s + 1]) s++, c2++;
else if (s <= e - 1 && str[e] == str[e - 1]) e--, c2++;
else e--, c2++;
}
}
if (c1 == k || c2 == k) break;
flag = !flag;
}
if (c1 == k) cout << "NE\n";
else cout << "DA\n";
}
int main() {
KarginSet();
int test = 1;
//cin >> test;
while (test--) {
KarginSolve();
}
return 0;
}
Compilation message (stderr)
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