UVa: 12583 (Memory Overflow)


Some Cases:

3
6 100 BBWWBB
Case 1: 4
6 100 BPLOIB
Case 2: 1
6 1 BBBBBB
Case 3: 5

// http://uva.onlinejudge.org/external/125/12583.html
// Runtime: 0.008s
// Tag: number, string

// @BEGIN_OF_SOURCE_CODE

#include <iostream>
#include <cstdio>
#include <algorithm>
#include <cstring>
#include <string>
#include <cctype>
#include <stack>
#include <queue>
#include <list>
#include <vector>
#include <map>
#include <sstream>
#include <cmath>
#include <bitset>
#include <utility>
#include <set>
#include <numeric>
#include <ctime>

#define Inf 2147483647
#define Pi acos(-1.0)
#define N 1000000
#define LL long long

inline LL Power(int b, int p) { LL ret = 1; for ( int i = 1; i <= p; i++ ) ret *= b; return ret; }

#define F(i, a, b) for( int i = (a); i < (b); i++ )
#define Fs(i, sz) for( size_t i = 0; i < sz.size (); i++ )
#define Fe(i, x) for(typeof (x.begin()) i = x.begin(); i != x.end (); i++)
#define Set(a, s) memset(a, s, sizeof (a))
#define max(a, b)  (a < b ? b : a)
#define min(a, b)  (a > b ? b : a)

using namespace std;

int main ()
{
    int testCases; scanf ("%d", &testCases);
    int cases = 0;

    while ( testCases-- ) {
        int n,  k;
        scanf ("%d %d", &n, &k);

        char str [1000];
        scanf ("%s", str);

        int vis [26 + 5];
        Set (vis, 0);

        int ret = 0;

        for ( int i = 0; i < n; i++ ) {
            if ( vis [str [i] - 'A'] ) ret++;
            vis [str [i] - 'A']++;

            if ( i - k >= 0 ) {
                vis [str [i - k] - 'A']--;
            }
        }

        printf ("Case %d: %d\n", ++cases, ret);
    }



	return 0;
}

// @END_OF_SOURCE_CODE

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s