QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #395799 | #6749. Target | potremz | AC ✓ | 12ms | 5364kb | C++17 | 1001b | 2024-04-21 19:28:49 | 2024-04-21 19:28:50 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
const double eps = 1e-4;
double a, b;
map<double, int>cnt;
bool have_answer;
void dfs(double x, string ans) {
if (have_answer) {
return;
}
if (cnt.count(x)) {
if (cnt[x] < ans.size()) {
return;
} else {
cnt[x] = ans.size();
}
}
if (ans.size() > 50) {
return;
}
if (fabs(x - b) <= eps) {
have_answer = 1;
cout << ans;
return;
}
if (x > b) {
cnt[x / 2] = ans.size() + 1;
dfs(x / 2, ans + '1');
if (have_answer) {
return;
}
cnt[(x + 1) / 2] = ans.size() + 1;
dfs((x + 1) / 2, ans + '2');
if (have_answer) {
return;
}
} else {
cnt[(x + 1) / 2] = ans.size() + 1;
dfs((x + 1) / 2, ans + '2');
if (have_answer) {
return;
}
cnt[x / 2] = ans.size() + 1;
dfs(x / 2, ans + '1');
if (have_answer) {
return;
}
}
}
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
cin >> a >> b;
string ans = "";
dfs(a, ans);
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 1ms
memory: 3940kb
input:
0.5 0.25
output:
1
result:
ok ok
Test #2:
score: 0
Accepted
time: 0ms
memory: 3704kb
input:
1 0.75
output:
12
result:
ok ok
Test #3:
score: 0
Accepted
time: 0ms
memory: 3720kb
input:
1 0
output:
11111111111111
result:
ok ok
Test #4:
score: 0
Accepted
time: 2ms
memory: 3996kb
input:
0.361954 0.578805
output:
2121212121212121212121212121212121212121111212112
result:
ok ok
Test #5:
score: 0
Accepted
time: 7ms
memory: 5344kb
input:
0.144888 0.140086
output:
1211211121121112112111211211121121112212222111211
result:
ok ok
Test #6:
score: 0
Accepted
time: 5ms
memory: 4704kb
input:
0.514397 0.969399
output:
22221222221222221222221222221222221222121111122222
result:
ok ok
Test #7:
score: 0
Accepted
time: 3ms
memory: 4288kb
input:
0.887873 0.402213
output:
11212121212121212121212121212121212121222212211221
result:
ok ok
Test #8:
score: 0
Accepted
time: 0ms
memory: 3828kb
input:
0.152004 0.176414
output:
21121121121121121121121121121121121121121121221211
result:
ok ok
Test #9:
score: 0
Accepted
time: 2ms
memory: 4012kb
input:
0.401831 0.860762
output:
2221221222122122212212221221222122122212111222122
result:
ok ok
Test #10:
score: 0
Accepted
time: 11ms
memory: 5224kb
input:
0.580629 0.869474
output:
22122212221222122212221222122212221221211212222122
result:
ok ok
Test #11:
score: 0
Accepted
time: 6ms
memory: 4660kb
input:
0.138673 0.508844
output:
21212121212121212121212121212121212121112112111112
result:
ok ok
Test #12:
score: 0
Accepted
time: 3ms
memory: 4140kb
input:
0.027182 0.263243
output:
2121121121121121121121121121121121121122122111121
result:
ok ok
Test #13:
score: 0
Accepted
time: 2ms
memory: 4540kb
input:
0.081714 0.212216
output:
211211211211211211211211211211211211212112212211
result:
ok ok
Test #14:
score: 0
Accepted
time: 6ms
memory: 4648kb
input:
0.562775 0.388603
output:
1212121212121212121212121212121212121222122111221
result:
ok ok
Test #15:
score: 0
Accepted
time: 0ms
memory: 3920kb
input:
0.112949 0.147503
output:
2112112112112112112112112112112112112112221211211
result:
ok ok
Test #16:
score: 0
Accepted
time: 1ms
memory: 3876kb
input:
0.800247 0.150903
output:
11121121121121121121121121121121121121121212211211
result:
ok ok
Test #17:
score: 0
Accepted
time: 1ms
memory: 3840kb
input:
0.300103 0.584619
output:
2121212121212121212121212121212121212121221212112
result:
ok ok
Test #18:
score: 0
Accepted
time: 7ms
memory: 4732kb
input:
0.844720 0.070148
output:
11112111211121112111211121112111211121222221112111
result:
ok ok
Test #19:
score: 0
Accepted
time: 3ms
memory: 4116kb
input:
0.573320 0.123035
output:
1112111211121112111211121112111211121111222222111
result:
ok ok
Test #20:
score: 0
Accepted
time: 12ms
memory: 5364kb
input:
0.467281 0.231366
output:
1121121121121121121121121121121121121221122122211
result:
ok ok
Test #21:
score: 0
Accepted
time: 1ms
memory: 4208kb
input:
0.264769 0.373434
output:
21212121212121212121212121212121212121211222222121
result:
ok ok
Test #22:
score: 0
Accepted
time: 3ms
memory: 4148kb
input:
0.689729 0.570712
output:
1212121212121212121212121212121212121211112112112
result:
ok ok
Test #23:
score: 0
Accepted
time: 4ms
memory: 4456kb
input:
0.747218 0.312573
output:
11212112121121211212112121121211212112111111112121
result:
ok ok
Test #24:
score: 0
Accepted
time: 2ms
memory: 4020kb
input:
0.215052 0.203677
output:
121121121121121121121121121121121121121111212211
result:
ok ok
Test #25:
score: 0
Accepted
time: 2ms
memory: 4304kb
input:
0.607834 0.733102
output:
2122122122122122122122122122122122122121222122212
result:
ok ok
Test #26:
score: 0
Accepted
time: 0ms
memory: 4564kb
input:
0.516860 0.252876
output:
11211211211211211211211211211211211211112211111121
result:
ok ok
Test #27:
score: 0
Accepted
time: 1ms
memory: 4112kb
input:
0.955285 0.457773
output:
1121212121212121212121212121212121212121121212221
result:
ok ok
Test #28:
score: 0
Accepted
time: 2ms
memory: 4276kb
input:
0.156178 0.353262
output:
2121212121212121212121212121212121212122112122121
result:
ok ok
Test #29:
score: 0
Accepted
time: 5ms
memory: 4504kb
input:
0.398701 0.040258
output:
11112111121111211112111121111211112111212112121111
result:
ok ok
Test #30:
score: 0
Accepted
time: 0ms
memory: 3776kb
input:
0.973859 0.000184
output:
111111111111
result:
ok ok
Test #31:
score: 0
Accepted
time: 3ms
memory: 4396kb
input:
0.882213 0.556709
output:
12121212121212121212121212121212121212111212221112
result:
ok ok
Test #32:
score: 0
Accepted
time: 3ms
memory: 4780kb
input:
0.263822 0.460984
output:
21212121212121212121212121212121212121111112212221
result:
ok ok
Test #33:
score: 0
Accepted
time: 7ms
memory: 4908kb
input:
0.443432 0.034841
output:
11112111121111211112111121111211112111222211121111
result:
ok ok