Submission #5023229

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Source Code Expand

#define _CRT_SECURE_NO_WARNINGS
#include "bits/stdc++.h"
using namespace std;
#define rep(i, n) for(int i=0; i<(n); ++i)
#define FOR(i, m, n) for(int i=(m); i<(n); ++i)
#define sz(x) ((int)(x).size())
#define all(x) (x).begin(),(x).end()
#define mp make_pair
#define pb push_back
#define Cout(x) cout << (x) << endl
#define dump(x) cerr << #x << " = " << (x) << endl;
typedef long long LL;
typedef vector<int> VI;
typedef vector<long long> VL;
typedef vector<string> VS;
typedef vector<vector<int>> VVI;
typedef pair<int, int> PII;
const int inf = (int)1e9;
const long long mod = (long long)1e9 + 7;
const double pi = acos(-1.0);

int main() {
	string s; cin >> s;
	if (sz(s) < 3) {
		Cout(0);
		return 0;
	}
	s.erase(unique(all(s)), s.end());
	if (s.front() == 'O')s.erase(s.begin());
	if (s.back() == 'O')s.erase(s.end() - 1);
	Cout(sz(s) < 3 ? 0 : sz(s));
}

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