6 files changed, 98 insertions, 0 deletions
diff --git a/works/life/algorithm-contest-2/generator/4/1.in b/works/life/algorithm-contest-2/generator/4/1.in
new file mode 100644
index 0000000..feef14b
--- /dev/null
+++ b/works/life/algorithm-contest-2/generator/4/1.in
@@ -0,0 +1,3 @@
+2 10
+6 5
+5 6
diff --git a/works/life/algorithm-contest-2/generator/4/2.in b/works/life/algorithm-contest-2/generator/4/2.in
new file mode 100644
index 0000000..d72e475
--- /dev/null
+++ b/works/life/algorithm-contest-2/generator/4/2.in
@@ -0,0 +1,4 @@
+3 20
+1 2
+2 1
+3 4
+\ No newline at end of file
diff --git a/works/life/algorithm-contest-2/generator/4/3.in b/works/life/algorithm-contest-2/generator/4/3.in
new file mode 100644
index 0000000..60d56de
--- /dev/null
+++ b/works/life/algorithm-contest-2/generator/4/3.in
@@ -0,0 +1,4 @@
+3 1
+4 5
+8 6
+7 7
+\ No newline at end of file
diff --git a/works/life/algorithm-contest-2/generator/4/4.cpp b/works/life/algorithm-contest-2/generator/4/4.cpp
new file mode 100644
index 0000000..fc0de0b
--- /dev/null
+++ b/works/life/algorithm-contest-2/generator/4/4.cpp
@@ -0,0 +1,29 @@
+#include <iostream>
+#include <random>
+#include <vector>
+
+using std::cout;
+
+int main() {
+  std::default_random_engine engine(std::random_device{}());
+  std::uniform_int_distribution<int> distribution(1, 1000);
+  const int SIZE = 100;
+  std::vector<int> b;
+
+  for (int i = 0; i < SIZE * 2; i++) {
+    b.push_back(distribution(engine));
+  }
+
+  long long sum = 0;
+  for (int i = 0; i < SIZE; i++) {
+    sum += b[i * 2] * b[i * 2 + 1];
+  }
+
+  cout << SIZE << ' ' << (sum + 10) << '\n';
+
+  for (int i = 0; i < SIZE; i++) {
+    cout << b[i * 2] << ' ' << b[i * 2 + 1] << '\n';
+  }
+
+  return 0;
+}
diff --git a/works/life/algorithm-contest-2/generator/4/5.cpp b/works/life/algorithm-contest-2/generator/4/5.cpp
new file mode 100644
index 0000000..518a4aa
--- /dev/null
+++ b/works/life/algorithm-contest-2/generator/4/5.cpp
@@ -0,0 +1,29 @@
+#include <iostream>
+#include <random>
+#include <vector>
+
+using std::cout;
+
+int main() {
+  std::default_random_engine engine(std::random_device{}());
+  std::uniform_int_distribution<int> distribution(1, 10000);
+  const int SIZE = 600;
+  std::vector<int> b;
+
+  for (int i = 0; i < SIZE * 2; i++) {
+    b.push_back(distribution(engine));
+  }
+
+  long long sum = 0;
+  for (int i = 0; i < SIZE; i++) {
+    sum += b[i * 2] * b[i * 2 + 1];
+  }
+
+  cout << SIZE << ' ' << 5000 << '\n';
+
+  for (int i = 0; i < SIZE; i++) {
+    cout << b[i * 2] << ' ' << b[i * 2 + 1] << '\n';
+  }
+
+  return 0;
+}
diff --git a/works/life/algorithm-contest-2/generator/4/6.cpp b/works/life/algorithm-contest-2/generator/4/6.cpp
new file mode 100644
index 0000000..b4bdb00
--- /dev/null
+++ b/works/life/algorithm-contest-2/generator/4/6.cpp
@@ -0,0 +1,29 @@
+#include <iostream>
+#include <random>
+#include <vector>
+
+using std::cout;
+
+int main() {
+  std::default_random_engine engine(std::random_device{}());
+  std::uniform_int_distribution<int> distribution(1, 10000);
+  const int SIZE = 100;
+  std::vector<int> b;
+
+  for (int i = 0; i < SIZE * 2; i++) {
+    b.push_back(distribution(engine));
+  }
+
+  long long sum = 0;
+  for (int i = 0; i < SIZE; i++) {
+    sum += b[i * 2] * b[i * 2 + 1];
+  }
+
+  cout << SIZE << ' ' << 5000 << '\n';
+
+  for (int i = 0; i < SIZE; i++) {
+    cout << b[i * 2] << ' ' << b[i * 2 + 1] << '\n';
+  }
+
+  return 0;
+}