Problem Statement:
Program to compute and display the sum of the following series up to n-terms:
X - X/2 + X/3 - X/4 +…
#include<stdio.h>
int main(){
int x, n;
float sum = 0.0;
scanf("%d",&x);
scanf("%d",&n);
for(int i=1;i<=n;i++){
if(i%2==1){
sum = sum + (float)x/i;
}else{
sum = sum - (float)x/i;
}
}
printf("%.2f",sum);
return 0;
}
int main(){
int x, n;
float sum = 0.0;
scanf("%d",&x);
scanf("%d",&n);
for(int i=1;i<=n;i++){
if(i%2==1){
sum = sum + (float)x/i;
}else{
sum = sum - (float)x/i;
}
}
printf("%.2f",sum);
return 0;
}
SAMPLE INPUT:
12
5
SAMPLE OUTPUT:
9.40
12
5
SAMPLE OUTPUT:
9.40