NPTEL programming in C - Printing Right Triangles

You are given a positive integer N. You have to print N rows as follows. The first row consists of one 0, the second row 2 zeroes, and so on, until the Nth row, which consists of N zeroes.

Note : NPTEL follows gcc compiler which doesn't supports conio.h package and it always to be started as int main() and should return a integer value

#include<stdio.h> int main() { int i,j,n; scanf("%d",&n); for(i=0;i<n;i++) { for(j=0;j<=i;j++) { printf("0"); } printf("\n"); } return 0; }  

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NPTEL Programming in c - Sums of Powers of Numbers

In this program, you are given an input N, which is a positive integer less than or equal to 40. Write a program to find the sums of fourth powers of the first N numbers.

Sample Input
2

Sample Output
17


Note : NPTEL follows gcc compiler which doesn't supports conio.h package and it always to be started as int main() and should return a integer value

#include<stdio.h> int main() { int n,i,sum=0; scanf("%d",&n); if(n>=0&&n<=40) { for(i=1;i<=n;i++) { sum=sum+i*i*i*i; } printf("%d",sum); } return 0; }

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NPTEL Programming in C - Pythagorean Triples

Three numbers form a Pythagorean triple if the sum of squares of two numbers is equal to the square of the third.

 For example, 3, 5 and 4 form a Pythagorean triple, since 3*3 + 4*4 = 25 = 5*5

You are given three integers, a, b, and c. They need not be given in increasing order. If they form a Pythagorean triple, then print "yes", otherwise, print "no". Please note that the output message is in small letters.

Sample Input

3

5

4

Sample Output

yes

Note : NPTEL follows gcc compiler which doesn't supports conio.h package and it always to be started as int main() and should return a integer value

#include<stdio.h> int main() { int a,b,c,x,y,z; scanf("%d\n%d\n%d",&a,&b,&c); // Get the three values & calculate it square values x=a*a; y=b*b; z=c*c; // compare whether it satisfies Pythagorean Triples and print yes or no based on outcome if(x==y+z) printf("yes"); else if(y==x+z) printf("yes"); else if(z==x+y) printf("yes"); else printf("no"); return 0; }

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