Submission #1910868


Source Code Expand

#pragma region include
#include <iostream>
#include <iomanip>
#include <stdio.h>

#include <sstream>
#include <algorithm>
#include <iterator>
#include <cmath>
#include <complex>

#include <string>
#include <cstring>
#include <vector>
#include <tuple>
#include <bitset>

#include <queue>
#include <set>
#include <map>
#include <stack>
#include <list>

#include <fstream>
#include <random>
//#include <time.h>
#include <ctime>
#pragma endregion //#include
/////////
#define REP(i, x, n) for(int i = x; i < n; ++i)
#define rep(i,n) REP(i,0,n)
#define ALL(X) X.begin(), X.end()
/////////
#pragma region typedef
typedef long long LL;
typedef long double LD;
typedef unsigned long long ULL;
typedef std::pair<LL,LL> PLL;//
typedef std::pair<int,int> PII;//
#pragma endregion //typedef
////定数
const int INF = (int)1e9;
const LL MOD = (LL)1e9+7;
const LL LINF = (LL)4e18+20;
const LD PI = acos(-1.0);
const double EPS = 1e-9;
/////////
using namespace::std;

void solve(){
	string str;
	cin >> str;
	int size = str.size();

	int ans,L,R;
	if( size&1 ){
		ans = size/2;
		L = size/2;
		R = L;
	}else{
		ans = size/2;
		L = size/2-1;
		R = size/2;
	}
	while(true){
		if( str[L] == str[R] ){
			if( L!=R ){
				if( str[L]!=str[L+1] ){
					break;
				}
			}
		}else{
			break;
		}

		--L;
		++R;
		++ans;
		if( L < 0 ){
			break;
		}
	}
	cout << ans << endl;
}

#pragma region main
signed main(void){
	std::cin.tie(0);
	std::ios::sync_with_stdio(false);
	std::cout << std::fixed;//小数を10進数表示
	cout << setprecision(16);//小数点以下の桁数を指定//coutとcerrで別	

	solve();
}
#pragma endregion //main()

Submission Info

Submission Time
Task D - Wide Flip
User akarin55
Language C++14 (GCC 5.4.1)
Score 500
Code Size 1713 Byte
Status AC
Exec Time 2 ms
Memory 512 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 500 / 500
Status
AC × 3
AC × 30
Set Name Test Cases
Sample s1.txt, s2.txt, s3.txt
All 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt, 14.txt, 15.txt, 16.txt, 17.txt, 18.txt, 19.txt, 20.txt, 21.txt, 22.txt, 23.txt, 24.txt, 25.txt, 26.txt, 27.txt, s1.txt, s2.txt, s3.txt
Case Name Status Exec Time Memory
01.txt AC 1 ms 512 KB
02.txt AC 1 ms 512 KB
03.txt AC 1 ms 512 KB
04.txt AC 1 ms 512 KB
05.txt AC 1 ms 512 KB
06.txt AC 2 ms 512 KB
07.txt AC 2 ms 512 KB
08.txt AC 1 ms 512 KB
09.txt AC 1 ms 512 KB
10.txt AC 1 ms 512 KB
11.txt AC 1 ms 512 KB
12.txt AC 1 ms 512 KB
13.txt AC 1 ms 512 KB
14.txt AC 1 ms 512 KB
15.txt AC 1 ms 512 KB
16.txt AC 1 ms 512 KB
17.txt AC 2 ms 512 KB
18.txt AC 2 ms 512 KB
19.txt AC 2 ms 512 KB
20.txt AC 2 ms 512 KB
21.txt AC 1 ms 256 KB
22.txt AC 1 ms 256 KB
23.txt AC 1 ms 256 KB
24.txt AC 1 ms 256 KB
25.txt AC 1 ms 256 KB
26.txt AC 1 ms 256 KB
27.txt AC 1 ms 256 KB
s1.txt AC 1 ms 256 KB
s2.txt AC 1 ms 256 KB
s3.txt AC 1 ms 256 KB