[codeforces - 1316] Add C++ solution for C. Primitive Primes.

Author: abeaumont

codeforces/1316/c-1.ans

@@ -0,0 +1 @@
+1

codeforces/1316/c-1.in

@@ -0,0 +1,3 @@
+3 2 2
+1 1 2
+2 1

codeforces/1316/c-2.ans

@@ -0,0 +1 @@
+0

codeforces/1316/c-2.in

@@ -0,0 +1,3 @@
+2 2 999999937
+2 1
+3 1

codeforces/1316/c.cc

@@ -0,0 +1,26 @@
+// https://codeforces.com/contest/1316/problem/C
+#include <bits/stdc++.h>
+
+using namespace std;
+using ll = long long;
+using ii = tuple<int, int>;
+using vi = vector<ll>;
+using vii = vector<ii>;
+using vvi = vector<vi>;
+using si = set<ll>;
+
+int main() {
+  cin.tie(0), ios::sync_with_stdio(0);
+  ll n, m, p, a, b;
+  cin >> n >> m >> p;
+  int k = -1, l = -1;
+  for (int i=0; i<n; i++) {
+    cin >> a;
+    if (a%p != 0 && k < 0) k=i;
+  }
+  for (int j=0; j<m; j++) {
+    cin >> b;
+    if (b%p != 0 && l < 0) l=j;
+  }
+  cout << k+l << endl;
+}

codeforces/README.md

@@ -3,6 +3,7 @@
 There are solutions for the following [codeforces](http://codeforces.com/) problems:
 
 ### Contests ([problemset site](https://codeforces.com/problemset))
+1. [1316C - Primitive Primes](1316/c.cc) ([problem site](https://codeforces.com/contest/1316/problem/C))
 1. [1316B - String Modification](1316/b.cc) ([problem site](https://codeforces.com/contest/1316/problem/B))
 1. [1316A - Grade Allocation](1316/a.cc) ([problem site](https://codeforces.com/contest/1316/problem/A))
 1. [1315C - Restoring Permutation](1315/c.cc) ([problem site](https://codeforces.com/contest/1315/problem/C))