Print 1 to 100 in C++ Without Loops and Recursion

Print a number 100 times without using loop, recursion and macro expansion in C?

Last Updated : 21 Jun, 2022

It is possible to solve this problem using loop or a recursion method. And we have already seen the solution using #define directive (Macro expansion) but what if all three are not allowed? A simple solution is to write the number 100 times in cout statement. A better solution is to use concept of Concept of setjump and longjump in C.

CPP

// CPP program to print one 100 times. 
#include <iostream> 
#include <setjmp.h> 
using namespace std; 

jmp_buf buf; 

int main() 
{ 
    int x = 1; 

    // Setup jump position using buf 
    setjmp(buf); 
    cout << "1"; // Prints 1 

    x++; 
    if (x <= 100) 

        // Jump to the point setup by setjmp 
        longjmp(buf, 1); 

    return 0; 
}

Output :

 100 times 1.

Time complexity : O(n)
Auxiliary Space : O(1)

The same can be written for C also.

Print 1 to 100 in C++ Without Loops and Recursion

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Aditya Rakhecha

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