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jump-game.go
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jump-game.go
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package main
import (
"fmt"
)
// source: https://leetcode.com/problems/jump-game/
func canJump(nums []int) bool {
n := len(nums)
dp := make([]bool, n)
dp[0] = true
for i, j := range nums {
if !dp[i] {
continue
}
for t := i + 1; t <= i+j && t < n; t++ {
dp[t] = true
}
}
return dp[n-1]
}
func main() {
testCases := []struct {
nums []int
want bool
}{
{
nums: []int{2, 3, 1, 1, 4},
want: true,
},
{
nums: []int{3, 2, 1, 0, 4},
want: false,
},
}
successes := 0
for _, tc := range testCases {
x := canJump(tc.nums)
status := "ERROR"
if fmt.Sprint(x) == fmt.Sprint(tc.want) {
status = "OK"
successes++
}
fmt.Println(status, " Expected: ", tc.want, " Actual: ", x)
}
if l := len(testCases); successes == len(testCases) {
fmt.Printf("===\nSUCCESS: %d of %d tests ended successfully\n", successes, l)
} else {
fmt.Printf("===\nFAIL: %d tests failed\n", l-successes)
}
}