1 files changed, 44 insertions, 0 deletions
diff --git a/5p17.cpp b/5p17.cpp
new file mode 100644
index 0000000..154996f
--- /dev/null
+++ b/5p17.cpp
@@ -0,0 +1,44 @@
+#include <iostream>
+#include <vector>
+
+/*
+ *
+ * 5.17
+ *
+ *
+ */
+
+int main () {
+
+	std::vector<int> v1 = {1,1,1,1,2};
+	std::vector <int> v2 = {1,1,1,1,2};
+	auto v1l = v1.size();
+	auto v2l = v2.size();
+	decltype(v1.cend()) smallestend;
+	decltype(v1.cbegin()) smallestbeg;
+	decltype(v1.cbegin()) biggestbeg;
+	if(v1l > v2l) {
+		smallestend = v2.cend();
+		smallestbeg = v2.cbegin();
+		biggestbeg = v1.cbegin();
+	} else if (v2l > v1l) {
+		smallestend = v1.cend();
+		smallestbeg = v1.cbegin();
+		biggestbeg = v2.cbegin();
+	} else if (v1l == v2l) {
+		smallestend = v1.cend();
+		smallestbeg = v1.cbegin();
+		biggestbeg = v2.cbegin();
+	}
+
+	bool determine_prefix = true;
+	for( ; smallestbeg != smallestend ; ++smallestbeg, ++biggestbeg) {
+		if(*smallestbeg != *biggestbeg) {
+			determine_prefix = false;
+			break;
+		}
+	}
+
+	std::cout << (determine_prefix ? "true" : "false")  << std::endl;
+	return 0;
+}