@@ -6,7 +6,7 @@ impl Solution {
66 let len = nums. len ( ) ;
77
88 if len == 1 {
9- return nums[ 0 ] == 24_f32
9+ return ( nums[ 0 ] - 24_f32 ) . abs ( ) < 1.0e-6 ;
1010 }
1111
1212 for i in 0 ..len {
@@ -19,7 +19,6 @@ impl Solution {
1919 }
2020 }
2121
22- 2322 let mut new_nums_add = new_nums. clone ( ) ;
2423 new_nums_add. push ( nums[ i] + nums[ j] ) ;
2524 if helpers ( new_nums_add) {
@@ -33,6 +32,12 @@ impl Solution {
3332 return true
3433 }
3534
35+ let mut new_nums_res_sub = new_nums. clone ( ) ;
36+ new_nums_res_sub. push ( nums[ j] - nums[ i] ) ;
37+ if helpers ( new_nums_res_sub) {
38+ return true
39+ }
40+ 3641 let mut new_nums_mul = new_nums. clone ( ) ;
3742 new_nums_mul. push ( nums[ i] * nums[ j] ) ;
3843 if helpers ( new_nums_mul) {
@@ -47,6 +52,13 @@ impl Solution {
4752 }
4853 }
4954
55+ if nums[ i] != 0_f32 {
56+ let mut new_nums_res_div = new_nums. clone ( ) ;
57+ new_nums_res_div. push ( nums[ j] / nums[ i] ) ;
58+ if helpers ( new_nums_res_div) {
59+ return true
60+ }
61+ }
5062
5163 }
5264
@@ -57,7 +69,6 @@ impl Solution {
5769 false
5870 }
5971
60- 6172 helpers (
6273 nums. into_iter ( )
6374 . map ( |v| v as f32 )
@@ -78,6 +89,7 @@ mod tests {
7889 #[ test] fn it_works ( ) {
7990
8091 assert ! ( Solution :: judge_point24( vec![ 4 , 1 , 8 , 7 ] ) ) ;
92+ assert ! ( Solution :: judge_point24( vec![ 3 , 3 , 8 , 8 ] ) ) ;
8193 assert ! ( Solution :: judge_point24( vec![ 1 , 9 , 1 , 2 ] ) ) ;
8294 assert_eq ! ( Solution :: judge_point24( vec![ 1 , 2 , 1 , 2 ] ) , false ) ;
8395
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