In this tutorial, we will discuss a concept of Display integrated pyramid star pattern in C using while loop
In C language, we can use for loop ,while loop and do-while loop to display different number (binary, decimal), alphabets or star patterns programs.
In this article, we are going to learn how to Display integrated pyramid star pattern using while loop in C language
Program 1
#include <stdio.h> #include <stdlib.h> int main() { int i,j,rows; printf("Enter the number of rows: "); scanf("%d",&rows); //get input from the user for rows i=1; while(i<=rows){ //parent while loop j=i; while(j<=rows){ //print upper part of pattern printf("*"); j++; } i++; printf("\n"); } i=rows-1; while(i>=1){ //print lower part of pattern j=i; while(j<=rows){ printf("*"); j++; } i--; printf("\n"); } getch(); return 0; }
When the above code is executed, it produces the following results
Program 2
#include <stdio.h> #include <stdlib.h> int main() { int i,j,row; printf("Enter the number of rows :"); scanf("%d",&row); //get input from the user for rows i=1; while(i<=row){ j=1; while(j<i){ printf(" "); j++; } j=i; while(j<=row){ printf("*"); j++; } i++; printf("\n"); } i=row-1; while(i>=1){ //print lower part of pattern j=1; while(j<i){ printf(" "); j++; } j=i; while(j<=row){ printf("*"); j++; } i--; printf("\n"); } getch(); return 0; }
When the above code is executed, it produces the following results
Program 3
#include <stdio.h> #include <stdlib.h> int main() { int i,j,row; printf("Enter the number of rows: "); scanf("%d",&row); //get input from the user for rows i=1; while(i<=row){ j=1; while(j<=i){ printf(" "); j++; } j=i; while(j<=row){ printf("*"); printf(" "); j++; } i++; printf("\n"); } i=row-1; while(i>=1){ //print lower part of pattern j=1; while(j<=i){ printf(" "); j++; } j=i; while(j<=row){ printf("*"); printf(" "); j++; } i--; printf("\n"); } getch(); return 0; }
When the above code is executed, it produces the following results
Program 4
#include <stdio.h> #include <stdlib.h> int main() { int i,j,row; printf("Enter the number of rows"); scanf("%d",&row); //get input from the user for rows i=1; while(i<=row){ j=1; while(j<=row-i){ printf(" "); j++; } j=1; while(j<=i){ printf("*"); printf(" "); j++; } i++; printf("\n"); } i=1; while(i<=row-1){ j=1; while(j<=i){ //print lower part of pattern printf(" "); j++; } j=1; while(j<=row-i){ printf("*"); printf(" "); j++; } i++; printf("\n"); } getch(); return 0; }
When the above code is executed, it produces the following results
Program 5
#include <stdio.h> #include <stdlib.h> int main() { int i,j,k,rows; printf("Enter the number of rows: "); scanf("%d",&rows); //get input from the user for rows i=1; while(i<=rows){ for(j=1; j<=i; j++){ //print upper part of pattern printf("*"); } j=i*2; while(j<rows*2){ printf(" "); j++; } k=i; while( k>=1){ printf("*"); k--; } printf("\n"); i++; } getch(); return 0; }
When the above code is executed, it produces the following results
Program 6
#include <stdio.h> #include <stdlib.h> int main() { int i,j,k,rows; printf("Enter the number of rows: "); scanf("%d",&rows); //get input from the user for rows i=rows; while(i>=1){ //parent while loop j=rows; while(j>=1+rows-i){ //print upper part of pattern printf("*"); j--; } j=i*2; while(j<rows*2-1){ printf(" "); j++; } k=1+rows-i; while( k<=rows){ if(k!=1) printf("*"); k++; } printf("\n"); i--; } getch(); return 0; }
When the above code is executed, it produces the following results
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