add new solutions

solutions/0/q73/solution.go

@@ -0,0 +1,24 @@
+package q73
+
+func setZeroes(matrix [][]int) {
+	zRows := make([]bool, len(matrix))
+	zCols := make([]bool, len(matrix[0]))
+	for r := range matrix {
+		for c := range matrix[0] {
+			if matrix[r][c] == 0 {
+				zRows[r] = true
+				zCols[c] = true
+			}
+		}
+	}
+
+	for r := range matrix {
+		for c := range matrix[0] {
+			if zRows[r] || zCols[c] {
+				matrix[r][c] = 0
+			}
+		}
+	}
+}
+
+var _ = setZeroes