Problem	prime
User	auser24241
Submission Time	2026-04-14 09:38:38
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

prime.cpp:4:6: error: ‘cin’ in namespace ‘std’ does not name a type
4 | std::cin >> a;
| ^~~
prime.cpp:2:1: note: ‘std::cin’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’?
1 | #include <cmath>
+++ |+#include <iostream>
2 | using namespace std;
prime.cpp:7:1: error: expected unqualified-id before ‘for’
7 | for (i=1, i < b, i++){
| ^~~