Merge remote-tracking branch 'upstream/master'

1 files changed, 38 insertions, 0 deletions

diff --git a/challenge-080/ash/cpp/ch-1.cpp b/challenge-080/ash/cpp/ch-1.cpp
new file mode 100644
index 0000000000..278833993b
--- /dev/null
+++ b/challenge-080/ash/cpp/ch-1.cpp
@@ -0,0 +1,38 @@
+/*
+    Task 1 from
+    https://perlweeklychallenge.org/blog/perl-weekly-challenge-080/
+*/
+
+#include <iostream>
+#include <vector>
+#include <map>
+
+using namespace std;
+
+int missing_n(vector<int> n) {
+    map<int, bool> v;
+
+    int max = n[0];
+    for (auto x : n) {
+        v[x] = true;
+        if (x > max) max = x;
+    }
+
+    for (auto c = 1; c < max; c++) {
+        if (!v[c]) {
+            return c;
+            break;
+        }
+    }
+
+    return max + 1;
+}
+
+int main() {
+    cout << (missing_n(vector<int> {5, 2, -2, 0})          == 1) << endl;
+    cout << (missing_n(vector<int> {1, 8, -1})             == 2) << endl;
+    cout << (missing_n(vector<int> {5, 2, -2, 0})          == 1) << endl;
+
+    cout << (missing_n(vector<int> {5, 2, 3, 1, -2, 0})    == 4) << endl;
+    cout << (missing_n(vector<int> {5, 2, 3, 1, 4, -2, 0}) == 6) << endl;
+}