Submission #8252054

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Source Code Expand

# include<bits/stdc++.h>

using namespace std;

# define int long long
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<double, int> pdi;
typedef pair<ll, ll> pll;

# define S second
# define F first
# define kill(x) return(cout << x << endl, 0)
# define debug(x) cerr<< #x << " : " << x << endl
# define ddebug(x, y) cerr<< #x << " : " << x  << ", " << #y << " : " << y << endl
# define sz(s) (int)s.size()
# define sq(x) (x) * (x)
# define PB(x) push_back(x)
# define smax(x, y) (x) = max((x), (y))
# define smin(x, y) (x) = min((x), (y))
# define all(x) x.begin(), x.end()
# define SP fixed << setprecision(10)

int32_t main()
{	
	ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);

	string s;
	cin >> s;
	int ans = sz(s) * (sz(s) - 1);
	for (int i = 0; i < sz(s); i ++)
		if (s[i] == 'U')
			ans += i;
		else
			ans += sz(s) - i - 1;
	cout << ans << endl;

	return 0;
}

Submission Info

Judge Result