#include<stdio.h>#include<conio.h>void main(){ int i,j,n; char ch=A; clrscr(); //to clear the screen printf("How many lines?"); scanf("%d",&n);
for(i=0;i<n;++i) { for(j=0;j<=i;++j) printf("%c",ch+j); printf("
"); } getch(); //to stop the screen}
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