Submission #935553

#	Time	Username	Problem	Language	Result	Execution time	Memory
935553		dilanyan	Kamenčići (COCI21_kamencici)	C++17	0 / 70	0 ms	348 KiB

Main

//-------------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 {
                int sx = 0, ex = 0;
                for (int i = s; i <= e;i++) {
                    if (str[i] == 'P') break;
                    sx++;
                }
                for (int i = e;i >= s;i--) {
                    if (str[i] == 'P') break;
                    ex--;
                }
                if (sx == e - s + 1) {
                    c1++, s++;
                }
                else {
                    if (sx & 1) e--, c1++;
                    else s++, c1++;
                }
            }
        }
        else {
            if (str[s] == 'P') s++;
            else if (str[e] == 'P') e--;
            else {
                int sx = 0, ex = 0;
                for (int i = s; i <= e;i++) {
                    if (str[i] == 'P') break;
                    sx++;
                }
                for (int i = e;i >= s;i--) {
                    if (str[i] == 'P') break;
                    ex--;
                }
                if (sx == e - s + 1) {
                    c2++, s++;
                }
                else {
                    if (sx & 1) e--, c2++;
                    else s++, 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)

Main.cpp:1:1: warning: multi-line comment [-Wcomment]
    1 | //-------------dilanyan------------\\
      | ^
Main.cpp:8:1: warning: multi-line comment [-Wcomment]
    8 | //------------------Kargpefines--------------------\\
      | ^
Main.cpp:27:1: warning: multi-line comment [-Wcomment]
   27 | //-------------------KarginConstants------------------\\
      | ^
Main.cpp:32:1: warning: multi-line comment [-Wcomment]
   32 | //-------------------KarginCode-----------------------\\
      | ^
Main.cpp: In function 'void KarginSet(std::string)':
Main.cpp:22:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   22 |         freopen((name + ".in").c_str(), "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:23:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   23 |         freopen((name + ".out").c_str(), "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 40