feat(bfs): new problem formated

knight-moves/src/generator.cpp

@@ -0,0 +1,69 @@
+#include "testlib.h"
+#include <bits/stdc++.h>
+
+using namespace std;
+
+const int MIN_N = 1;
+const int MAX_N = 4096;
+
+const int rnd_test_n = 100;
+
+template <typename T> void append(vector<T> &dest, const vector<T> &orig) {
+	dest.insert(dest.end(), orig.begin(), orig.end());
+}
+
+string output_tc(const vector<string> &positions) {
+	ostringstream oss;
+    oss << (int)positions.size() << endl;
+    for (const string &pos : positions) {
+        oss << pos << endl;
+    }
+	return oss.str();
+}
+
+vector<string> generate_sample_tests() {
+	vector<string> tests;
+    tests.push_back(output_tc({"a1 h8", "a1 c2", "h8 c3"}));
+	return tests;
+}
+
+vector<string> generate_manual_tests() {
+	vector<string> tests;
+	tests.push_back(output_tc({"a1 a1"}));
+	tests.push_back(output_tc({"b5 g3"}));
+	return tests;
+}
+
+string rnd_test(int i){
+    int cases = rnd.next(MIN_N, MAX_N);
+    vector<string> positions;
+    while (cases--) {
+        string start = rnd.next("[a-h][1-8]");
+        string end = rnd.next("[a-h][1-8]");
+        positions.push_back(start + " " + end);
+    }
+
+    return output_tc(positions);
+}
+
+vector<string> generate_random_tests() { 
+    vector<string> tests;
+    for (int i = 0; i < rnd_test_n; i++){
+        tests.push_back(rnd_test(i));
+    } 
+    return tests;
+}
+
+int main(int argc, char *argv[]) {
+	registerGen(argc, argv, 1);
+	vector<string> tests;
+	size_t test = 0;
+	append(tests, generate_sample_tests());
+	append(tests, generate_manual_tests());
+	append(tests, generate_random_tests());
+	for (const auto &t : tests) {
+		startTest(++test);
+		cout << t;
+	}
+	return 0;
+}