Create 118-Pascals-Triangle.rs

Author: zim0369

118-Pascals-Triangle.rs

@@ -0,0 +1,15 @@
+impl Solution {
+    pub fn generate(num_rows: i32) -> Vec<Vec<i32>> {
+        let mut ans: Vec<Vec<i32>> = Vec::new();
+        for line in 1..=num_rows {
+            let mut c = 1;
+            let mut v: Vec<i32> = Vec::new();
+            for i in 1..=line {
+                v.push(c);
+                c = c * (line - i) / i;
+            }
+            ans.push(v.clone());
+        }
+        ans
+    }
+}