#include <bits/stdc++.h>
using namespace std;

int main() 
{
  int n;
  cin>>n;
  vector<int> her;
  for(int i=0;i<n;i++)
  {
    int x;
    cin>>x;
    her.push_back(x);
  }
  int m;
  cin>>m;
  for(int i=0;i<m;i++)
  {
    long long int x;
    cin>>x;
    long long int y;
    cin>>y;
    long long int min = 0;
    long long int min1 = 0;
    long long int min2 = 0;
    long long int diff = 1e7;
    long long int sum = 0;
    for(int j=0;j<n;j++)
    {
      sum += her[j];
      if(abs(x-her[j])<diff)
     { 
       min1 = her[j];
       diff = abs(x-her[j]);
     }
     if(abs(x-her[j])==diff && her[j]!=min1)
     {
       min2 = her[j];
     }
    }
    long long int r1 = (min1>=x?0:abs(x-min1))+((sum-min1)>=y?0:abs(sum-min1-y));
    long long int r2 = (min2>=x?0:abs(x-min2))+((sum-min2)>=y?0:abs(sum-min2-y));
    min = r1>r2?min2:min1;
    int ck = sum  - y;
    if(ck > 0 && ck > x)
    {
      for(int k=0;k<n;k++)
      {
        if(her[k]>=x && her[k]<=ck)
        min = her[k];
        break;
      }
    }
    long long int ans = (min>=x?0:abs(x-min))+((sum-min)>=y?0:abs(sum-min-y));
    cout<<ans<<'\n';
  }
}
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C++ Online Compiler

Write, Run & Share C++ code online using OneCompiler's C++ online compiler for free. It's one of the robust, feature-rich online compilers for C++ language, running on the latest version 17. Getting started with the OneCompiler's C++ compiler is simple and pretty fast. The editor shows sample boilerplate code when you choose language as C++ and start coding!

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
}