编辑代码

#include <stdio.h>  
#include <string.h>  
  
void printPatternIterative(int n) {  
    for (int i = 1; i <= n; i++) {  
        char line[100];  
        for (int j = 0; j < i; j++) {  
            sprintf(line + j, "%d", i);  
        }  
        printf("%s\n", line);  
    }  
}  
  
int main() {  
    printPatternIterative(5);  
    return 0;  
}