main
黄海 1 year ago
parent be907d1475
commit fc335754a9

@ -0,0 +1,18 @@
#include <bits/stdc++.h>
using namespace std;
int cnt;
bool isPrime(int x) {
for (int i = 2; i <= sqrt(x); i++)
if (x % i == 0) return false;
return true;
}
int main() {
int n, m;
cin >> n >> m;
for (int i = n; i <= m; i++)
if (isPrime(i)) cnt++;
cout << cnt << endl;
return 0;
}

@ -1,19 +0,0 @@
#include <bits/stdc++.h>
using namespace std;
int main() {
int n;
cin >> n;
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= n; j++) {
if (j == 1 || j == n)
cout << "|";
else if (i == n / 2 + 1)
cout << "-";
else
cout << "a";
}
puts("");
}
return 0;
}
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