QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #231138 | #7642. Integer Half-Sum | ucup-team1766# | AC ✓ | 63ms | 53220kb | Java11 | 576b | 2023-10-29 02:29:17 | 2023-10-29 02:29:18 |
Judging History
answer
import java.io.*;
import java.util.*;
public class Main {
public static void main(String[] args) throws IOException {
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
PrintWriter out = new PrintWriter(System.out);
StringTokenizer line = new StringTokenizer(in.readLine());
int l = Integer.parseInt(line.nextToken());
int r = Integer.parseInt(line.nextToken());
if (l == r) {
out.println(l);
} else if(r == l + 1) {
out.println(-1);
} else {
out.println(r - 1);
}
in.close();
out.close();
}
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 52ms
memory: 48348kb
input:
2 4
output:
3
result:
ok 1 number(s): "3"
Test #2:
score: 0
Accepted
time: 53ms
memory: 52800kb
input:
1 1
output:
1
result:
ok 1 number(s): "1"
Test #3:
score: 0
Accepted
time: 51ms
memory: 50140kb
input:
1 2
output:
-1
result:
ok 1 number(s): "-1"
Test #4:
score: 0
Accepted
time: 46ms
memory: 48756kb
input:
100 100
output:
100
result:
ok 1 number(s): "100"
Test #5:
score: 0
Accepted
time: 52ms
memory: 48964kb
input:
99 100
output:
-1
result:
ok 1 number(s): "-1"
Test #6:
score: 0
Accepted
time: 63ms
memory: 48748kb
input:
3 3
output:
3
result:
ok 1 number(s): "3"
Test #7:
score: 0
Accepted
time: 57ms
memory: 50048kb
input:
2 3
output:
-1
result:
ok 1 number(s): "-1"
Test #8:
score: 0
Accepted
time: 54ms
memory: 48520kb
input:
1 3
output:
2
result:
ok 1 number(s): "2"
Test #9:
score: 0
Accepted
time: 46ms
memory: 49280kb
input:
2 5
output:
4
result:
ok 1 number(s): "4"
Test #10:
score: 0
Accepted
time: 59ms
memory: 48376kb
input:
3 7
output:
6
result:
ok 1 number(s): "6"
Test #11:
score: 0
Accepted
time: 55ms
memory: 48788kb
input:
3 8
output:
7
result:
ok 1 number(s): "7"
Test #12:
score: 0
Accepted
time: 50ms
memory: 48328kb
input:
4 10
output:
9
result:
ok 1 number(s): "9"
Test #13:
score: 0
Accepted
time: 60ms
memory: 52940kb
input:
35 37
output:
36
result:
ok 1 number(s): "36"
Test #14:
score: 0
Accepted
time: 49ms
memory: 48648kb
input:
43 46
output:
45
result:
ok 1 number(s): "45"
Test #15:
score: 0
Accepted
time: 53ms
memory: 49596kb
input:
82 86
output:
85
result:
ok 1 number(s): "85"
Test #16:
score: 0
Accepted
time: 53ms
memory: 48660kb
input:
55 60
output:
59
result:
ok 1 number(s): "59"
Test #17:
score: 0
Accepted
time: 51ms
memory: 48800kb
input:
25 31
output:
30
result:
ok 1 number(s): "30"
Test #18:
score: 0
Accepted
time: 45ms
memory: 48668kb
input:
37 44
output:
43
result:
ok 1 number(s): "43"
Test #19:
score: 0
Accepted
time: 46ms
memory: 50404kb
input:
75 83
output:
82
result:
ok 1 number(s): "82"
Test #20:
score: 0
Accepted
time: 39ms
memory: 52416kb
input:
74 83
output:
82
result:
ok 1 number(s): "82"
Test #21:
score: 0
Accepted
time: 54ms
memory: 49176kb
input:
88 98
output:
97
result:
ok 1 number(s): "97"
Test #22:
score: 0
Accepted
time: 46ms
memory: 49032kb
input:
75 86
output:
85
result:
ok 1 number(s): "85"
Test #23:
score: 0
Accepted
time: 50ms
memory: 50252kb
input:
1 100
output:
99
result:
ok 1 number(s): "99"
Test #24:
score: 0
Accepted
time: 55ms
memory: 53064kb
input:
1 50
output:
49
result:
ok 1 number(s): "49"
Test #25:
score: 0
Accepted
time: 51ms
memory: 48448kb
input:
50 100
output:
99
result:
ok 1 number(s): "99"
Test #26:
score: 0
Accepted
time: 58ms
memory: 52624kb
input:
7 35
output:
34
result:
ok 1 number(s): "34"
Test #27:
score: 0
Accepted
time: 44ms
memory: 48828kb
input:
87 95
output:
94
result:
ok 1 number(s): "94"
Test #28:
score: 0
Accepted
time: 52ms
memory: 48284kb
input:
11 30
output:
29
result:
ok 1 number(s): "29"
Test #29:
score: 0
Accepted
time: 55ms
memory: 48980kb
input:
47 69
output:
68
result:
ok 1 number(s): "68"
Test #30:
score: 0
Accepted
time: 50ms
memory: 49048kb
input:
11 48
output:
47
result:
ok 1 number(s): "47"
Test #31:
score: 0
Accepted
time: 56ms
memory: 48896kb
input:
71 85
output:
84
result:
ok 1 number(s): "84"
Test #32:
score: 0
Accepted
time: 49ms
memory: 48988kb
input:
84 89
output:
88
result:
ok 1 number(s): "88"
Test #33:
score: 0
Accepted
time: 54ms
memory: 53220kb
input:
22 56
output:
55
result:
ok 1 number(s): "55"
Test #34:
score: 0
Accepted
time: 48ms
memory: 48704kb
input:
2 72
output:
71
result:
ok 1 number(s): "71"
Test #35:
score: 0
Accepted
time: 60ms
memory: 48640kb
input:
18 55
output:
54
result:
ok 1 number(s): "54"
Test #36:
score: 0
Accepted
time: 50ms
memory: 48440kb
input:
4 11
output:
10
result:
ok 1 number(s): "10"
Test #37:
score: 0
Accepted
time: 56ms
memory: 48716kb
input:
42 59
output:
58
result:
ok 1 number(s): "58"
Test #38:
score: 0
Accepted
time: 41ms
memory: 48764kb
input:
52 79
output:
78
result:
ok 1 number(s): "78"
Test #39:
score: 0
Accepted
time: 48ms
memory: 48900kb
input:
11 48
output:
47
result:
ok 1 number(s): "47"
Test #40:
score: 0
Accepted
time: 48ms
memory: 48820kb
input:
4 51
output:
50
result:
ok 1 number(s): "50"
Test #41:
score: 0
Accepted
time: 50ms
memory: 48924kb
input:
3 60
output:
59
result:
ok 1 number(s): "59"
Test #42:
score: 0
Accepted
time: 41ms
memory: 50900kb
input:
21 88
output:
87
result:
ok 1 number(s): "87"
Test #43:
score: 0
Accepted
time: 58ms
memory: 48612kb
input:
17 94
output:
93
result:
ok 1 number(s): "93"
Test #44:
score: 0
Accepted
time: 50ms
memory: 49380kb
input:
11 98
output:
97
result:
ok 1 number(s): "97"
Test #45:
score: 0
Accepted
time: 43ms
memory: 48932kb
input:
2 99
output:
98
result:
ok 1 number(s): "98"
Extra Test:
score: 0
Extra Test Passed