#include <stdio.h>

int main() {
    
    for(int i=1;i<=3;i++){
        printf("%d번째\n", i);
        for(int j=1;j<=10;j++){
            printf("%d ", j);
        }
        printf("\n");
    }

    for(int i=1;i<=3;i++){
        for(int j=1;j<=5;j++){
            printf("*");
        }
        printf("\n");
    }

    for(int i=1;i<=5;i++){
        for(int j=1;j<=i;j++){
            printf("*");
        }
        printf("\n");
    }

    for(int i=1;i<=5;i++){
        for(int j=5;j>=i;j--){
            printf("*");
        }
        printf("\n");
    }

    for(int i=1;i<=5;i++){
        for(int j=1;j<=i-1;j++){ //S
            printf(" ");
        }
        for(int j=5;j>=i;j--){ //*
            printf("*");
        }
        printf("\n");
    }

    for(int i=2;i<=9;i++){
        for(int j=1;j<=9;j++){
            printf("%d x %d = %d\n", i, j, i*j);
        }
        printf("\n");
    }            
    
}

Embed on website

To embed this project on your website, copy the following code and paste it into your website's HTML: