QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#393232 | #6749. Target | ir101# | AC ✓ | 1ms | 4004kb | C++20 | 1.7kb | 2024-04-18 12:46:06 | 2024-04-18 12:46:06 |
Judging History
answer
#include <bits/stdc++.h>
#define int long long
#define endl '\n'
#define PSI pair<string,int>
#define double long double
using namespace std;
void solve() {
double a,b;
cin>>a>>b;
if(abs(b-a)<1e-4){
return;
}
double s=0.5;
double ans=a;
double bb=b;
vector<int>res;
double dq=0.5;
while(res.size()<20){
if(b>=dq){
res.push_back(1);
b-=dq;
}
else{
res.push_back(0);
}
dq*=0.5;
}
vector<int>oper;
for (int i = 1; i <=50 ; ++i) {
if(abs(ans-1.0)<1e-5){
break;
}
ans=0.5+0.5*ans;
// cout<<ans<<endl;
oper.push_back(2);
}
if(abs(b-1.0)<1e-4){
for (int i = 0; i <oper.size() ; ++i) {
cout<<oper[i];
}
return;
}
// while (!res.empty() && res.back() == 0) res.pop_back();
// cerr << oper.size() << '\n';
std::reverse(res.begin(), res.end());
// oper.push_back(1);
for (int i = 0; i < res.size(); ++i) {
if (res[i] == 0) oper.push_back(1);
if (res[i] == 1) oper.push_back(2);
}
// for (auto v:res) {
// oper.push_back(1);
// if (v) oper.push_back(2);
// }
// cout<<oper.size()<<endl;
for (auto v:oper) cout << v;
// cerr << '\n';
// double sa = a, sb = bb;
// for (auto v:oper) {
// sa *= 0.5;
// if(v == 2) sa += 0.5;
// }
// cerr << fixed << setprecision(6) << sa << ' ' << bb;
}
signed main() {
//ios::sync_with_stdio(0);
//cin.tie(0) , cout.tie(0);
int T = 1;
//cin >> T ;
while(T--) solve();
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 1ms
memory: 3924kb
input:
0.5 0.25
output:
222222222222222211111111111111111121
result:
ok ok
Test #2:
score: 0
Accepted
time: 0ms
memory: 3848kb
input:
1 0.75
output:
11111111111111111122
result:
ok ok
Test #3:
score: 0
Accepted
time: 1ms
memory: 3812kb
input:
1 0
output:
11111111111111111111
result:
ok ok
Test #4:
score: 0
Accepted
time: 1ms
memory: 3936kb
input:
0.361954 0.578805
output:
222222222222222221121122121111212112
result:
ok ok
Test #5:
score: 0
Accepted
time: 0ms
memory: 3808kb
input:
0.144888 0.140086
output:
2222222222222222212121122212222111211
result:
ok ok
Test #6:
score: 0
Accepted
time: 0ms
memory: 3772kb
input:
0.514397 0.969399
output:
222222222222222211121212121111122222
result:
ok ok
Test #7:
score: 0
Accepted
time: 0ms
memory: 3984kb
input:
0.887873 0.402213
output:
2222222222222212212221222212211221
result:
ok ok
Test #8:
score: 0
Accepted
time: 1ms
memory: 3760kb
input:
0.152004 0.176414
output:
2222222222222222222212112121121221211
result:
ok ok
Test #9:
score: 0
Accepted
time: 0ms
memory: 3740kb
input:
0.401831 0.860762
output:
222222222222222212221212212111222122
result:
ok ok
Test #10:
score: 0
Accepted
time: 0ms
memory: 3984kb
input:
0.580629 0.869474
output:
222222222222222221222121211212222122
result:
ok ok
Test #11:
score: 0
Accepted
time: 0ms
memory: 3740kb
input:
0.138673 0.508844
output:
2222222222222222221122211112112111112
result:
ok ok
Test #12:
score: 0
Accepted
time: 0ms
memory: 3764kb
input:
0.027182 0.263243
output:
2222222222222222212222211122122111121
result:
ok ok
Test #13:
score: 0
Accepted
time: 0ms
memory: 3692kb
input:
0.081714 0.212216
output:
2222222222222222211222211212112212211
result:
ok ok
Test #14:
score: 0
Accepted
time: 0ms
memory: 3804kb
input:
0.562775 0.388603
output:
222222222222222222212212222122111221
result:
ok ok
Test #15:
score: 0
Accepted
time: 0ms
memory: 3776kb
input:
0.112949 0.147503
output:
2222222222222222211221211112221211211
result:
ok ok
Test #16:
score: 0
Accepted
time: 0ms
memory: 3908kb
input:
0.800247 0.150903
output:
22222222222222221122111121212211211
result:
ok ok
Test #17:
score: 0
Accepted
time: 1ms
memory: 3812kb
input:
0.300103 0.584619
output:
2222222222222222221122112121221212112
result:
ok ok
Test #18:
score: 0
Accepted
time: 0ms
memory: 3812kb
input:
0.844720 0.070148
output:
2222222222222222112121222221112111
result:
ok ok
Test #19:
score: 0
Accepted
time: 0ms
memory: 3740kb
input:
0.573320 0.123035
output:
222222222222222222112222222122222111
result:
ok ok
Test #20:
score: 0
Accepted
time: 0ms
memory: 3776kb
input:
0.467281 0.231366
output:
222222222222222211221212221122122211
result:
ok ok
Test #21:
score: 0
Accepted
time: 0ms
memory: 3988kb
input:
0.264769 0.373434
output:
2222222222222222221212112211222222121
result:
ok ok
Test #22:
score: 0
Accepted
time: 0ms
memory: 3800kb
input:
0.689729 0.570712
output:
22222222222222212111212211112112112
result:
ok ok
Test #23:
score: 0
Accepted
time: 1ms
memory: 3744kb
input:
0.747218 0.312573
output:
22222222222222211221121111111112121
result:
ok ok
Test #24:
score: 0
Accepted
time: 1ms
memory: 4004kb
input:
0.215052 0.203677
output:
2222222222222222212111121121111212211
result:
ok ok
Test #25:
score: 0
Accepted
time: 0ms
memory: 3808kb
input:
0.607834 0.733102
output:
222222222222222221121122121222122212
result:
ok ok
Test #26:
score: 0
Accepted
time: 0ms
memory: 3760kb
input:
0.516860 0.252876
output:
222222222222222222211122221211111121
result:
ok ok
Test #27:
score: 0
Accepted
time: 0ms
memory: 3688kb
input:
0.955285 0.457773
output:
222222222222221121111221121212221
result:
ok ok
Test #28:
score: 0
Accepted
time: 1ms
memory: 3940kb
input:
0.156178 0.353262
output:
2222222222222222212212222122112122121
result:
ok ok
Test #29:
score: 0
Accepted
time: 1ms
memory: 3736kb
input:
0.398701 0.040258
output:
222222222222222221211222112112121111
result:
ok ok
Test #30:
score: 0
Accepted
time: 0ms
memory: 3772kb
input:
0.973859 0.000184
output:
22222222222211111122111111111111
result:
ok ok
Test #31:
score: 0
Accepted
time: 0ms
memory: 3712kb
input:
0.882213 0.556709
output:
2222222222222222211121111212221112
result:
ok ok
Test #32:
score: 0
Accepted
time: 0ms
memory: 3740kb
input:
0.263822 0.460984
output:
2222222222222222211112211111112212221
result:
ok ok
Test #33:
score: 0
Accepted
time: 0ms
memory: 3688kb
input:
0.443432 0.034841
output:
222222222222222221212212122211121111
result:
ok ok