The sum of n natural numbers in C
#include<stdio.h>
int main()
{
int i,sum=0,n;
printf("Enter the value of n");
scanf("%d", &n);
for(i=0; i<=n; i++){
sum+=i;
}
printf("The sum of n natural numbers is %d", sum);
return 0;
}
create a num table in a new file in c
#include<stdio.h> int main() { FILE *ptr; int num; printf("Enter the integer which table you need of\n"); scanf("%d",&num); ptr = fopen("table.txt","w"); for(int i=0 ; i<10 ; i++){ fprintf(ptr,"%d*%d=%d\n",num,i+1,num*(i+1)); } fclose(ptr); return 0; }
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