Submission #1370419

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Source Code Expand

/**
 	Template created by Danel Batyrbek
 	All rights are reserved 2017 (lol)
*/

#include <bits/stdc++.h>

#define speed_up ios_base :: sync_with_stdio(0);cin.tie(0)
#define fr first
#define sc second
#define mkp make_pair
#define pb push_back
#define eb emplace_back
#define all(x) x.begin(), x.end()
#define debug(x) cerr << x << '\n';
#define YES "YES"
#define NO "NO"
#define skip continue
#define left(x) x << 1
#define rght(x) x << 1 | 1
#define forn(x, y, z) for(int x = y; x <= z; ++ x)
#define for1(x, y, z) for(int x = y; x >= z; -- x)
#define fname ""
using namespace std;

typedef long long ll;
typedef pair <int, int> pii;
typedef double ld;

const int N = 1e5 + 10;
const int mod = 1e9 + 7;
const int N3 = 1e3 + 10;
const int INF = 2e9 + 10;
const ll LINF = 2e18;

int n, k, cycle;
string s;
map <string, int> mp;
char A = 'A', B = 'B';

int main(){
#ifndef DEBUG
	if(fname != ""){
	freopen(fname".in", "r", stdin);
	freopen(fname".out", "w", stdout);
	}
#endif	
	speed_up;
	cin >> n >> k;
	cin >> s;
	mp[s] = 1;
	forn(i, 1, k){
		if(s[0] == A){
			s[0] = B;
			skip;
		}
		forn(j, 1, n - 1){
			if(s[j - 1] == B && s[j] == B){
				s[j - 1] = A;
			} else
			if(s[j - 1] == B && s[j] == A){
				s[j] = B;
			} else
			if(s[j - 1] == A && s[j] == B){
				skip;
			}
		}
		s[n - 1] = A;
		if(mp[s]){
			cycle = (i + 1) - mp[s];
			k %= cycle;
		} else {
			mp[s] = i + 1;
		}
	}
	cout << s;
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:44:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
  freopen(fname".in", "r", stdin);
                                 ^
./Main.cpp:45:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
  freopen(fname".out", "w", stdout);
                                   ^

Judge Result