add new solutions

solutions/1/q118/solution.go

@@ -0,0 +1,26 @@
+package q118
+
+func generate(numRows int) [][]int {
+	buf := make([]int, numRows*(1+numRows)/2)
+	p := 0
+	take := func(n int) []int {
+		ret := buf[p : p+n]
+		p = p + n
+		return ret
+	}
+
+	ret := make([][]int, 0, numRows)
+
+	for i := 1; i <= numRows; i++ {
+		row := take(i)
+		row[0] = 1
+		row[len(row)-1] = 1
+		for j := 1; j < len(row)-1; j++ {
+			row[j] = ret[i-2][j-1] + ret[i-2][j]
+		}
+		ret = append(ret, row)
+	}
+	return ret
+}
+
+var _ = generate