Submission #3750572

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
#define IOS ios::sync_with_stdio(false), cin.tie(0)
#define REP(i, n) for (int i = 0; i < n; i++)
#define FOR(i, a, b) for (int i = a; i < b; i++)
#define ALL(x) (x).begin(), (x).end()
#define dump(x) cout << (x) << endl
#define LMAX 9223372036854775807LL
#define LMIN -9223372036854775807LL
using ll = long long;
template<typename T>
using vec = vector<T>;
using P = pair<ll, ll>;
template <typename A, size_t N, typename T>
void Fill(A (&array)[N], const T &val){
	fill((T *)array, (T *)(array + N), val);
}

const ll INF = 1e16;
const ll MOD = 1e9 + 7;
//int dx[4] = {1,0,-1,0};
//int dy[4] = {0,1,0,-1};
//ll pas[51][52];


signed main(){
	IOS;
	string s;
	cin >> s;
	int n = s.size();
	int ans = n;
	for(int i = 0;i < n - 1;i++){
		if(s[i] != s[i + 1]){
			ans = min(ans,max(i + 1,n - i - 1));	
		}
	}
	dump(ans);	
}

Submission Info

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