#include <bits/stdc++.h>

using namespace std;

class solution {
public:
    int countAnalogousArraysBF(std::vector<int> A, int lowerBound, int upperBound) {
        unordered_set<int> a, b;
        
        for (int i = lowerBound; i <= upperBound; i++) a.insert(i);
        
        for (int diff: A) {
          for (int num: a) { 
            if (num + diff <= upperBound && num + diff >= lowerBound) {
              b.insert(num + diff);
            }
          }
          
          a = b;
          b.clear();
        }
        
        return a.size();
    }
    
    int countAnalogousArrays(std::vector<int> A, int lowerBound, int upperBound) {
      int mi = 0, mx = 0, sum = 0;
      
      for (int num: A) {
        sum += num;
        mi = min(mi, sum);
        mx = max(mx, sum);
      }
      
      return (upperBound - lowerBound - (mx - mi) + 1);
    }
};

int main() 
{
    solution s;
    // auto A = {0, 10, 0, 1, -2, -5, 8, 7, -4, 9, -8, -7, -2, -10, 5, -7, -2, 2, -7, -9, 1, 0, 8, -7, -10, 4, -2, 3, 3, 0, 8, -2, -8, 5, -1, -5, 9, -5, 10, -8, -9, -7, 4, 1, 10, -6, -4, -5, 5, -4, -8, -6, -5, -1, -2, 10, 0, 8, -4, -9, -4, 5, -2, -1, -10, -10, 1, 8, -5, 10, 8, 9, 4, -10, -3, 2, -8, 8, 10, -8, 0, -9, -8, 8, 6, -1, 1, -4, 1, -7, 9, -3, -10, -10, -7, -10, 0, -8, 1, -8};
    auto A = {-1, 3, 2};
    cout << s.countAnalogousArraysBF(A, 2, 8) << " " << s.countAnalogousArrays(A, 2, 8);
    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
}