Answer Posted / koushik sarkar

#include<stdio.h>
#include<conio.h>
void main()
{
int i=1,j,k;
clrscr();
for(j=0;j<4;j++)
{
for(k=0;k<=j;k++)
{
printf("%d "",i);
i++;
}
printf("\n");
}
getch();
}

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