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Ooprc3b
- 1. #include<iostream.h> #include<conio.h> void main() { int n,i,j,isprime,sum=0; clrscr(); cout<<"Find sum of all between 1 to"; cin>>n; for(i=2;i<=n;i++) { isprime=1; for(j=2;j<=i/2;j++) { if(i%j==0) { isprime=0; break; } } if(isprime==1) { z sum+=i; } } cout<<"Result is:"<<sum; getch(); }