#include <bits/stdc++.h>
using namespace std;
typedef long long int lld;
int D[104][104];
int main() {
  
  /*
  crazy, plz recap this thing at home.
  no hints, no tips, no code, only test cases from official sources
  
  but the actual crazy part is,
  
  by changing a few words from the question Brush (II) to Brush (III),
  the code is already drastically different than than from Brush (II)
  
  previous: Minimum round to clean up all dust(s)
  current:  Maximum number of dust(s) cleaned in at most k rounds. 
  
  The question setter only needs to change a few words and you have
  a brand new question, times and times again.
  */
  
  int t; scanf("%d",&t); lld w; int n,k; lld x,y;
  for (int ti=0; ti<t; ti++) {
    scanf("%d%lld%d",&n,&w,&k); std::map<lld,int> M={};
    for (int i=0; i<n; i++) {
      scanf("%lld%lld",&x,&y);M[y]++;
    } memset(D,-1,sizeof(D));
    vector<pair<lld,int>> V={};
    for (auto pp : M) { V.push_back(pp); } 
    int vlen=V.size(); int cnt=0;
    for (int i=0; i<vlen; i++) {
      D[i][1]=V[i].second;lld cd=V[i].first;
      for (int kk=k; kk>=1; kk--) {
        int j=i; int tmps=0;
        for (;j>=0; j--) {
          if (cd-V[j].first>w) break;
          tmps+=V[j].second;
          int pp=0;
          if (j>0&&D[j-1][kk-1]!=-1) {
            pp=D[j-1][kk-1];
            D[i][kk]=std::max(D[i][kk],tmps+pp);
          }
          else if (j==0) { D[i][kk]=std::max(D[i][kk],tmps+pp); }
        }
        for (;j>=0; j--) {
          int pp=0;
          if (j>0&&D[j-1][kk-1]!=-1) {
            pp=D[j-1][kk-1];
            D[i][kk]=std::max(D[i][kk],tmps+pp);
          }
          else if (j==0) { D[i][kk]=std::max(D[i][kk],tmps+pp); }
        }
        cnt=std::max(cnt,D[i][kk]);
      }
    }
    if (ti) { printf("\n"); }
    printf("Case %d: %d",ti+1,cnt);
  }
  return 0;
}
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Read inputs from stdin

OneCompiler's C++ online compiler supports stdin and users can give inputs to programs using the STDIN textbox under the I/O tab. Following is a sample program which takes name as input and print your name with hello.

#include <iostream>
#include <string>
using namespace std;

int main() 
{
    string name;
    cout << "Enter name:";
    getline (cin, name);
    cout << "Hello " << name;
    return 0;
}

About C++

C++ is a widely used middle-level programming language.

  • Supports different platforms like Windows, various Linux flavours, MacOS etc
  • C++ supports OOPS concepts like Inheritance, Polymorphism, Encapsulation and Abstraction.
  • Case-sensitive
  • C++ is a compiler based language
  • C++ supports structured programming language
  • C++ provides alot of inbuilt functions and also supports dynamic memory allocation.
  • Like C, C++ also allows you to play with memory using Pointers.

Syntax help

Loops

1. If-Else:

When ever you want to perform a set of operations based on a condition If-Else is used.

if(conditional-expression) {
   //code
}
else {
   //code
}

You can also use if-else for nested Ifs and If-Else-If ladder when multiple conditions are to be performed on a single variable.

2. Switch:

Switch is an alternative to If-Else-If ladder.

switch(conditional-expression){    
case value1:    
 // code    
 break;  // optional  
case value2:    
 // code    
 break;  // optional  
......    
    
default:     
 code to be executed when all the above cases are not matched;    
}

3. For:

For loop is used to iterate a set of statements based on a condition.

for(Initialization; Condition; Increment/decrement){  
  //code  
}

4. While:

While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.

while (condition) {  
// code 
}

5. Do-While:

Do-while is also used to iterate a set of statements based on a condition. It is mostly used when you need to execute the statements atleast once.

do {  
 // code 
} while (condition);

Functions

Function is a sub-routine which contains set of statements. Usually functions are written when multiple calls are required to same set of statements which increases re-usuability and modularity. Function gets run only when it is called.

How to declare a Function:

return_type function_name(parameters);

How to call a Function:

function_name (parameters)

How to define a Function:

return_type function_name(parameters) {  
 // code
}