Initial commit.

.gitignore

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+
+/target
+**/*.rs.bk

Cargo.toml

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+[package]
+name = "group-result"
+version = "0.1.0"
+authors = ["Xing <xingmarc@yeah.net>"]
+
+[dependencies]

src/main.rs

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+
+fn matches(member: [u8; 4]) -> [(u8, u8); 6]
+{
+    let mut result: [(u8, u8); 6] = [(0, 0); 6];
+    let mut i = 0;
+    let mut j = 1;
+    let mut count = 0;
+
+    while i < 4 {
+        j = i + 1;
+        while j < 4 {
+            result[count] = (member[i], member[j]);
+            count = count + 1;
+            j = j + 1;
+        }
+        i = i + 1;
+    }
+
+    result
+}
+
+fn main() {
+    let a = [1,2,3,4];
+    let combinition = matches(a);
+    for (t1, t2) in &combinition {
+        println!("{} vs {}", t1, t2);
+    }
+}