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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#393232#6749. Targetir101#AC ✓1ms4004kbC++201.7kb2024-04-18 12:46:062024-04-18 12:46:06

Judging History

你现在查看的是最新测评结果

  • [2024-04-18 12:46:06]
  • 评测
  • 测评结果:AC
  • 用时:1ms
  • 内存:4004kb
  • [2024-04-18 12:46:06]
  • 提交

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