Submission #1311250

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;
#define sd(x) scanf("%lld",&x)
#define slld(x) scanf("%lld",&x)
#define ss(x) scanf("%s",x)
#define mod 1000000007
#define bitcount __builtin_popcountll
#define ll long long
#define pb push_back
#define pi pair<ll,ll>
#define pii pair<pi,ll>
#define mp make_pair
string s;
int main()
{
	ll i,j,k;
	cin>>s;
	ll x=s.size();
	ll ans=0;
	for(i=0;i<s.size();i++)
	{
		if(s[i]=='U')
		{
			ans+=x-i-1;
			ans+=2*i;
		}
		else
		{
			ans+=2*(x-i-1);
			ans+=i;
		}
	}
	printf("%lld\n",ans );
	return 0;
}

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