add new solutions

solutions/0/q64/solution.go

@@ -0,0 +1,21 @@
+package q64
+
+func minPathSum(grid [][]int) int {
+	w, h := len(grid[0]), len(grid)
+
+	for y := 1; y < h; y++ {
+		grid[y][0] += grid[y-1][0]
+	}
+	for x := 1; x < w; x++ {
+		grid[0][x] += grid[0][x-1]
+	}
+
+	for y := 1; y < h; y++ {
+		for x := 1; x < w; x++ {
+			grid[y][x] += min(grid[y-1][x], grid[y][x-1])
+		}
+	}
+	return grid[h-1][w-1]
+}
+
+var _ = minPathSum