Help simple c program with loop, not running through each integer.

[charmedbeauty]

Homework Statement

I want to create a program that prints the sum of integers k for k(1-20)

ie,

k sum
1 1
2 3
3 6
4 10
5 .
6 .
.
.
.
.
.
20 .

in that format

Homework Equations

The Attempt at a Solution

#include <stdio.h>

int main(int argc,char * argv[]){
int i=0, sum=0, n=20;
for (i=0;i<n;++i);{

sum=sum+i;

printf("%d = %4d\n",i, sum);
}

return 0;
}

I don't want the user to enter an input (hence no scanf) I just want the program to run through integers 1-20 and print there sum.

when I run this it just prints 20 = 20??

help please!

Thanks.

 

[jedishrfu]

you put a semicolon in a bad spot

for ( ... ) ;{ ...code block... }

just runs the for loop but not the code block

try this:

for ( ...) { ...code block... }

this is a famous gotcha that many programmers do at one time or another

 

[charmedbeauty]

you put a semicolon in a bad spot

for ( ... ) ;{ ...code block... }

just runs the for loop but not the code block

try this:

for ( ...) { ...code block... }

this is a famous gotcha that many programmers do at one time or another

Ohh wow that worked... I was stuck on that for a while... no pun intended:)

 

[Xitami]

and now try without a loop