class4.c

#include <stdio.h>
int main() {
  int i, j;
  for (i = 1; i <= 5; i++)
    for (j = i + 1; j <= 4; j++)
      printf("%d", 2 * j - 1);
  return 0;
}

#include <stdio.h>
int main() {
  int i = 5, j = 1;
  while (i) {
    j = i * j;
    i--;
  }
  printf("%d %d", i, j);
  return 0;
}

#include <stdio.h>
int main() {
  int x = 1, y = 10;
  while (x < y) {
    x++;
    y--;
  }
  printf("%d %d", x, y);
  return 0;
}

#include <stdio.h>
int main() {
  int i = 2, x = 36;
  while (x > 1) {
    while (x % i == 0) {
      x /= i; //x=x/i;
      printf("%d", i);
    }
    i++;
  }
  return 0;
}

#include <stdio.h>
int main() {
  int x = (1, 2, 3);
  while (x) {
    printf("%d", x);
    x--;
  }
  return 0;
}

#include <stdio.h>
int main() {
  int x;
  x = 1, 2, 3;
  while (x) {
    printf("%d", x);
    x--;
  }
  return 0;
}

//wap to calculate sum of n odd natural no
#include <stdio.h>
int main() {
  int i, n;
  int s = 0;
  printf("enter a no");
  scanf("%d", &n);
  for (i = 1; i <= n; i++)
    s = s + 2 * i - 1;
  {
    printf("%d", s);
  }

  return 0;
}

#include <stdio.h>
int main() {
  int x = 8;
  for (; x; x >>= 1)
    printf("%d ", x);
  return 0;
}