Pow Function Different output power (10.2) and pow (10, n), where n = 2?

Question

#include<stdio.h>
#include<stdlib.h>
#include<math.h>

int main(){
    int n = 2;
    int z = 2*pow(10,n);
    int y = pow(10,n);
    printf("%d %d" , z , y);

    return 0;
}

Output is : 199 99

When I use 2instead of nhow int z = 2*pow(10,2) int y = pow(10,2).

Output is 200 100   

I know how to fix this problem.

It is excluded if, instead of integers, zthey yare float.

I want to know how really C does an integer listing for swimming and other conversions?

Why use 2instead nfixes the problem?

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This question. What happens here in the pow function? Discusses this topic and has some good answers.