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1017.cpp
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1017.cpp
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// Problem: 1017 - Brush (III)
// Contest: LightOJ
// URL: http://lightoj.com/volume_showproblem.php?problem=1017
// Memory Limit: 32 MB
// Time Limit: 2000 ms
// Powered by CP Editor (https://github.com/cpeditor/cpeditor)
#include <bits/stdc++.h>
#pragma GCC diagnostic ignored "-Wunused-variable"
#pragma GCC diagnostic ignored "-Wunused-parameter"
#pragma GCC diagnostic ignored "-Wunused-but-set-variable"
//#pragma GCC diagnostic ignored "-Wformat"
using namespace std ;
#define Pi 2*acos(0.0)
#define LINF 1LL<<63
#define ll long long
#define ull unsigned long long
#define pb push_back
#define mp make_pair
#define MAX 500006
#define MAX1 10000008
#define mem(a,v) memset(a,v,sizeof(a))
#define all(x) x.begin(),x.end()
#define lcm(a, b) ((a)*((b)/gcd(a,b)))
#define yes cout<<"YES"<<endl
#define no cout<<"NO"<<endl
#define buga cout<<1<<endl
#define bugb cout<<2<<endl
#define bugc cout<<3<<endl
#define bugd cout<<4<<endl
#define buge cout<<5<<endl
int A[MAX];
ll B[MAX];
ll C[MAX];
vector< ll >V;
vector< ll >Ans;
vector< pair<ll,ll> >VP;
map< ll,ll >M;
vector<ll>prime;
bool mark[MAX1];
ll N=1e7;
void seive (){int limit = sqrt(N*1.0)+2;mark[1]=1;for (int i=4;i<=N;i+=2)mark[i]=1;prime.push_back(2);for (int i=3;i<=N;i+=2){if(!mark[i]){prime.push_back(i);if(i<=limit){for (int j=i*i;j<=N;j+=i*2)mark[j]=1;}}}}
/*
ll bin_pow(ll o, ll s) {
if (s == 0) return 1;
if (s == 1) return o % mod;
ll d = bin_pow(o, s/2);
d = (d * 1ll * d) % mod;
if (s % 2 == 1)
d = (d * 1ll * o) % mod;
return d;
}
*/
int n,w,K,dp[203][203];
int calc(int a, int k){
if(k >=K||a >= n) {
return 0;
}
int& ret = dp[a][k];
if(ret != -1)return ret;
int b = n,val,Max = 0,sum = A[a];
ret = 0;
for(int i = a; i < n; i++){
if( A[a] + w < A[i])break;
Max++;
b = i;
}
int val1 = calc(b+1,k+1) + Max;
int val2 = calc(a+1,k);
ret = max(val1, val2);
return ret;
}
int main ()
{
int a,b,c,d,m,k,l,p,q,r,t,x,y;
int cnt=0,cntr=0,sum=0,ans=1,check=0;
int Max= 0,Max1=-1e18+1,Min=LINF;
string s,s1,s3,s4;
//cin>>n;
scanf("%d",&t);
for(int cs = 1; cs <= t; cs++){
scanf("%d %d %d",&n,&w,&K);
for(int i = 0; i < n; i++){
scanf("%d %d",&x,&y);
A[i] = y;
}
sort(A,A+n);
mem(dp,-1);
ans = calc(0,0);
printf("Case %d: %d\n",cs,ans);
//for(int i = 1; i <= n; i++)cout<<B[i]<<" ";cout<<endl;
}
return 0;
}