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- #include<stdio.h>
- int main(){
- int num,i,j;
- do{
- printf("Enter a number (1-5): ");
- scanf("%d",&num);
- if(num<1||num>5){
- printf("Invalid input\n");
- }
- }while(num<1||num>5);
- for(i=0;i<num;i++){
- for(j=0;j<=i;j++){
- printf("X");
- }
- printf("\n");
- }
- for(i=0;i<num;i++){
- for(j=1;j<5-i;j++){
- printf("X");
- }
- printf("\n");
- }
- return 0;
- }
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