Asked by
Birds of the sky (2 Golds)
Tuesday, 04 Jan 2022, 08:22 AM
at (Education
Tutorials)
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Answer(s):
Aptitude question 2018 Answered by Birds of the sky (2 Golds) Thursday, 06 Jan 2022, 02:53 AM
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1.
Prime Numbers 1 to N
#include<stdio.h> int main() { int num,i,count,n; printf("Enter max range: "); scanf("%d",&n); for(num = 1; num<=n; num++) { count = 0; for(i=2; i<=num/2; i++) { if(num%i==0) { count++; break; } } if(count==0 && num!= 1) printf("%d ",num); } return 0; }
2.
Count Number of Word from a string
#include<stdio.h> #include<string.h> int main() { char s[100]; gets(s); int l=strlen(s); int count=1; for(int i=0; i<l; i++) { if(s[i]==' ') { count++; } } printf("= %d ", count); return 0; }
3.
Reverse a String
#include<stdio.h> #include<string.h> int main() { char s[100]; gets(s); int l=strlen(s); for(int i=l-1; i>=0; i--) { printf("%c", s[i]); } return 0; }
4.
Half Pyramid
* ** *** **** *****
#include<stdio.h> #include<string.h> int main() { int i, j, n; scanf("%d", &n); for(i=1; i<=n; i++) { for(j=i; j>=1; j--) { printf("*"); } printf("n"); } return 0; }
5.
Half Inverted Pyramid
******
****
***
**
*
#include<stdio.h> #include<string.h> int main() { int i, j, n; scanf("%d", &n); for(i=n; i>=1; i--) { for(j=i; j>=1; j--) { printf("*"); } printf("n"); } return 0; }
6.
Print Prime Number 19 to 10
#include<stdio.h> #include<string.h> int isprime(int
n) { int i; for(i=2; i<n; i++) { if(n%i==0) return 0; } return 1; } int main() { int i, j, flag; for(i=19; i>=10; i--) { if(isprime(i) == 1) { printf("%d ", i); } }
return 0; }
7.
Program Takes input an Integer and Swap
first digit with last digit
Input : 12345 Output : 52341
#include<stdio.h> int main() { int num,temp,r,digit[10],i,j; printf("enter number: "); scanf("%d",&num); i=0; temp=num; while(temp!=0) { r=temp%10; digit[i]=r; i++; temp=temp/10; } printf("after swaping: "); //printing last digit at first; printf("%d",digit[0]); //printing midle digit. for(j=i-2; j>0; j--) { printf("%d",digit[j]); } //printing first digit at last printf("%d",digit[i-1]); }
8.
Uppercase Letter to Lowercase and Lowercase to Uppercase Letter in a String
#include<stdio.h> #include<string.h> int main() { char s[10]; gets(s); int l = strlen(s); for(int i=0; i<l; i++) { if(s[i]>='A' &&
s[i]<='Z') s[i]=s[i]+32; else s[i]=s[i]-32; } for(int i=0; i<l; i++) { printf("%c", s[i]); } return 0; }
9. Input : 5 Output:
1 22 333 4444 55555
#include<stdio.h> #include<string.h> int
main() { int i, j, n; //scanf("%d", &n); for(i=1; i<=5; i++) { for(j=1; j<=i; j++) { printf("%d", i); } printf("n");
} return 0; }
10. Answered by Birds of the sky (2 Golds) Tuesday, 04 Jan 2022, 08:23 AM |
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