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Link: http://codepad.org/sA8KdmBk    [ raw code | output | fork | 2 comments ]

C, pasted on Aug 31:
#include<stdio.h>
#include<conio.h>
#include<math.h>
int main()
{
	int i, n;
	float S, P;
	S = 0;
	P = 0;
	i = 1;
	do
	{
		printf("\nNhap n: ");
		scanf("%d", &n);
		if(n < 1)
		{
			printf("\nN phai lon hon hoac bang 1. Xin nhap lai !");
		}
	}while(n < 1);

	while(i <= n)
	{
		P = P + i;
		S = S + 1 * pow(-1, (float)(1 + i))/ P;
		i++;
	}
	printf("\nTong la %f", S);

	getch();
	return 0;
}


Output:
1
Line 17: error: conio.h: No such file or directory


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Comments:
posted by yonnon on Jul 12
#include<bits/stdc++.h>

using namespace std;
int main(){
int n;
cout << "Enter your sentence: ";
cin >> n;
int temp=0;
float S=0;
for(int i=1; i<=n;++i){
temp+=i;
S+= pow(-1,i+1) * (static_cast<float>(1.0)/(temp));
}
cout <<"Sum= "<<S<<
endl;
return 0;
}
reply
posted by cuong.luucb8921 on Aug 28
#include<stdio.h>

int main(){
int n;

do
{
printf("Nhap vap n:\n");
scanf("%d",&n);
if(n < 1)
{
printf("n phai lon hon bang 1\n");
}
}while(n < 1);

int i;
int s=0;
float sum=0;

for(i=1;i<=n;i++)
{
s = s + i;
sum = sum + pow(-1,i+1)/s;
}

printf("sum = %f",sum);
return 0;
}

reply