// Question-10 Beautiful Array
#include <stdio.h>
int beauty(int *beauty_2, int m)
{
int beauty_1 = 0;
for (int i = 0; i < m; i++)
{
while (beauty_2[i] != 0)
{
int beauty_3 = beauty_2[i] % 10;
if (beauty_3 == 7)
{
beauty_1++;
break;
}
beauty_2[i] /= 10;
}
}
return beauty_1;
}
int main()
{
int n;
int beauty_2[n];
for (int j = 0; j < n; j++)
{
scanf("%d", &beauty_2
[j
]); }
if (beauty(&beauty_2, n) >= 3)
{
}
else
{
}
}
Ly8gUXVlc3Rpb24tMTAgQmVhdXRpZnVsIEFycmF5CgojaW5jbHVkZSA8c3RkaW8uaD4KCmludCBiZWF1dHkoaW50ICpiZWF1dHlfMiwgaW50IG0pCnsKICAgIGludCBiZWF1dHlfMSA9IDA7CgogICAgZm9yIChpbnQgaSA9IDA7IGkgPCBtOyBpKyspCiAgICB7CgogICAgICAgIHdoaWxlIChiZWF1dHlfMltpXSAhPSAwKQogICAgICAgIHsKCiAgICAgICAgICAgIGludCBiZWF1dHlfMyA9IGJlYXV0eV8yW2ldICUgMTA7CgogICAgICAgICAgICBpZiAoYmVhdXR5XzMgPT0gNykKICAgICAgICAgICAgewoKICAgICAgICAgICAgICAgIGJlYXV0eV8xKys7CgogICAgICAgICAgICAgICAgYnJlYWs7CiAgICAgICAgICAgIH0KCiAgICAgICAgICAgIGJlYXV0eV8yW2ldIC89IDEwOwogICAgICAgIH0KICAgIH0KCiAgICByZXR1cm4gYmVhdXR5XzE7Cn0KaW50IG1haW4oKQp7CgogICAgaW50IG47CiAgICBzY2FuZigiJWQiLCAmbik7CiAgICBpbnQgYmVhdXR5XzJbbl07CgogICAgZm9yIChpbnQgaiA9IDA7IGogPCBuOyBqKyspCiAgICB7CiAgICAgICAgc2NhbmYoIiVkIiwgJmJlYXV0eV8yW2pdKTsKICAgIH0KICAgIGlmIChiZWF1dHkoJmJlYXV0eV8yLCBuKSA+PSAzKQogICAgewogICAgICAgIHByaW50ZigiQmVhdXRpZnVsIik7CiAgICB9CiAgICBlbHNlCiAgICB7CiAgICAgICAgcHJpbnRmKCJVZ2x5Iik7CiAgICB9Cn0K