22. Display the pattern in c program:* * * * *

Sure, here is a simple C program that will display the pattern you asked for:

#include <stdio.h>

int main() {
    int i, j, n = 5; // n is the number of lines
    for(i = 1; i <= n; i++) {
        for(j = 1; j <= i; j++) {
            printf("* ");
            if(j < i) {
                printf("  "); // print extra space between stars
            }
        }
        printf("\n"); // move to the next line
    }
    return 0;
}

This program uses two nested loops. The outer loop i runs for n times, where n is the number of lines. The inner loop j runs i times for each line. For each iteration of the inner loop, it prints a star followed by a space. If it's not the last star in the line, it prints an extra space. After each line, it prints a newline character to move to the next line.