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Commitc20f58d

Browse files
add a solution for 704
1 parent06f3863 commitc20f58d

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2 files changed

+64
-37
lines changed

2 files changed

+64
-37
lines changed

‎src/main/java/com/fishercoder/solutions/_704.java

Lines changed: 18 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -26,4 +26,22 @@ public int search(int[] nums, int target) {
2626
return -1;
2727
}
2828
}
29+
30+
publicstaticclassSolution2 {
31+
publicintsearch(int[]nums,inttarget) {
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intleft =0;
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intright =nums.length -1;
34+
while (left <right) {
35+
intmid =left + (right -left) /2;
36+
if (nums[mid] ==target) {
37+
returnmid;
38+
}elseif (nums[mid] <target) {
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left =mid +1;
40+
}else {
41+
right =mid -1;
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}
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}
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returnnums[left] ==target ?left : (right >=0 &&nums[right] ==target) ?right : -1;
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}
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}
2947
}

‎src/test/java/com/fishercoder/_704Test.java

Lines changed: 46 additions & 37 deletions
Original file line numberDiff line numberDiff line change
@@ -7,41 +7,50 @@
77
importstaticorg.junit.Assert.assertEquals;
88

99
publicclass_704Test {
10-
privatestatic_704.Solution1solution1;
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privatestaticint[]nums;
12-
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@BeforeClass
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publicstaticvoidsetup() {
15-
solution1 =new_704.Solution1();
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}
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@Test
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publicvoidtest1() {
20-
nums =newint[] {-1,0,3,5,9,12};
21-
assertEquals(4,solution1.search(nums,9));
22-
}
23-
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@Test
25-
publicvoidtest2() {
26-
nums =newint[] {-1,0,3,5,9,12};
27-
assertEquals(-1,solution1.search(nums,2));
28-
}
29-
30-
@Test
31-
publicvoidtest3() {
32-
nums =newint[] {5};
33-
assertEquals(0,solution1.search(nums,5));
34-
}
35-
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@Test
37-
publicvoidtest4() {
38-
nums =newint[] {-1,0};
39-
assertEquals(1,solution1.search(nums,0));
40-
}
41-
42-
@Test
43-
publicvoidtest5() {
44-
nums =newint[] {-1,0,3,5,9,12};
45-
assertEquals(1,solution1.search(nums,0));
46-
}
10+
privatestatic_704.Solution1solution1;
11+
privatestatic_704.Solution2solution2;
12+
privatestaticint[]nums;
13+
14+
@BeforeClass
15+
publicstaticvoidsetup() {
16+
solution1 =new_704.Solution1();
17+
solution2 =new_704.Solution2();
18+
}
19+
20+
@Test
21+
publicvoidtest1() {
22+
nums =newint[]{-1,0,3,5,9,12};
23+
assertEquals(4,solution1.search(nums,9));
24+
}
25+
26+
@Test
27+
publicvoidtest2() {
28+
nums =newint[]{-1,0,3,5,9,12};
29+
assertEquals(-1,solution1.search(nums,2));
30+
}
31+
32+
@Test
33+
publicvoidtest3() {
34+
nums =newint[]{5};
35+
assertEquals(0,solution1.search(nums,5));
36+
assertEquals(0,solution2.search(nums,5));
37+
}
38+
39+
@Test
40+
publicvoidtest4() {
41+
nums =newint[]{-1,0};
42+
assertEquals(1,solution1.search(nums,0));
43+
}
44+
45+
@Test
46+
publicvoidtest5() {
47+
nums =newint[]{-1,0,3,5,9,12};
48+
assertEquals(1,solution1.search(nums,0));
49+
}
50+
51+
@Test
52+
publicvoidtest6() {
53+
nums =newint[]{2,5};
54+
assertEquals(-1,solution2.search(nums,0));
55+
}
4756
}

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