Enormous Input Test Codechef Solution

Enormous Input Test Codechef Solution

Enormous Input Test Codechef Solution

The purpose of this problem is to verify whether the method you are using to read input data is sufficiently fast to handle problems branded with the enormous Input/Output warning.

You are expected to be able to process at least 2.5MB of input data per second at runtime.

Example

Input:
7 3
1
51
966369
7
9
999996
11

Output:
4

Source code:

// Note that this problem is for testing fast input-output.
// We can use scanf, printf in C langauge, which are quite fast in general 🙂
#include <bits/stdc++.h>

using namespace std;

// Usually, you can use scanf/printf in C++. However, if you want to use cin/cout, it is usually slow.
// To make it faster. Use cin.tie(NULL) and set ios_base::sync_with_stdio(false)
// See the below code for details.

int main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);

// Read the input n, k
int n, k;
cin >> n >> k;

// ans denotes number of integers n divisible by k
int ans = 0;

for (int i = 0; i < n; i++) {
int t;
cin >> t;

if (t % k == 0) {
ans++;
}
}

// Print the ans.
cout << ans << “\n”;

return 0;
}

Harsh

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