Sunday, June 19, 2016

TLAC Kattis Toilet Seat

Lesson :
Always sketch the solution in paper , Never ever just start coding NO MATTER how easy the problem is .
Think 2 minutes more if you have easier / shorter solution .
It's not about getting AC , it's about writing such a program that you can proof it's correctness .


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/****************************************

@_@
Cat Got Bored *_*
#_#
*****************************************/

#include <bits/stdc++.h>


#define loop(i,s,e) for(int i = s;i<=e;i++) //including end point

#define pb(a) push_back(a)

#define sqr(x) ((x)*(x))

#define CIN ios_base::sync_with_stdio(0); cin.tie(0);

#define ll long long

#define ull unsigned long long

#define SZ(a) int(a.size())

#define read() freopen("input.txt", "r", stdin)

#define write() freopen("output.txt", "w", stdout)


#define ms(a,b) memset(a, b, sizeof(a))

#define all(v) v.begin(), v.end()

#define PI acos(-1.0)

#define pf printf

#define sfi(a) scanf("%d",&a);

#define sfii(a,b) scanf("%d %d",&a,&b);

#define sfl(a) scanf("%lld",&a);

#define sfll(a,b) scanf("%lld %lld",&a,&b);

#define sful(a) scanf("%llu",&a);

#define sfulul(a,b) scanf("%llu %llu",&a,&b);

#define sful2(a,b) scanf("%llu %llu",&a,&b); // A little different

#define sfc(a) scanf("%c",&a);

#define sfs(a) scanf("%s",a);


#define mp make_pair

#define paii pair<int, int>

#define padd pair<dd, dd>

#define pall pair<ll, ll>

#define fs first

#define sc second

#define CASE(t) printf("Case %d: ",++t) // t initialized 0

#define cCASE(t) cout<<"Case "<<++t<<": ";

#define INF 1000000000   //10e9

#define EPS 1e-9

#define flc fflush(stdout); //For interactive programs , flush while using pf (that's why __c )

using namespace std;
//Remove this before submission
char toil[1009];
char up[1009];
char down[1009];
char prf[1009];
int main()
{
    sfs(toil);

    int len = strlen(toil);
    loop(i,0,len-1)
    {
        up[i] = toil[i];
        down[i] = toil[i];
        prf[i] = toil[i];
    }

    int cnt = 0;
    int u = 0;
    int d = 0;
    int p = 0;
    loop(i,1,len-1)
    {
        char ch1 = up[i];
        char ch2 = up[i-1];
        if(ch1!=ch2)
        {
            u++;
        }
        if(ch1=='D')
        {
            u++;
            up[i] = 'U';
        }
    }

    loop(i,1,len-1)
    {
        char ch1 = down[i];
        char ch2 = down[i-1];
        if(ch1!=ch2)
        {
            d++;
        }
        if(ch1=='U')
        {
            d++;
            down[i] = 'D';
        }
    }

    loop(i,1,len-1)
    {
        char ch1 = prf[i];
        char ch2 = prf[i-1];
        if(ch1!=ch2)
        {
            p++;
        }

    }

    cout<<u<<endl;
    cout<<d<<endl;
    cout<<p<<endl;

    return 0;
}
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