Uri problem 1156
#include<stdio.h>
int main(){
float sum=0;
float i;
float j=1;
for(i=1,j=1 ; i<=20,j<=10000000 ; i=i+2,j=j*2){
sum+=(i/j);
if(i>39){
break;
}
}
printf("%.2f\n",sum);
return 0;
}
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