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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#119097#6266. Good Bitstringspandapythoner33.333333 1228ms5572kbC++143.9kb2023-07-04 21:46:512023-07-04 21:46:53

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2023-07-04 21:46:53]
  • 评测
  • 测评结果:33.333333
  • 用时:1228ms
  • 内存:5572kb
  • [2023-07-04 21:46:51]
  • 提交

answer

#include <bits/stdc++.h>


using namespace std;


#define lll __int128_t
#define ll __int128_t
#define flt double
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()


ostream &operator<<(ostream &out, __int128_t a){
    out << (long long)a;
    return out;
}


istream &operator>>(istream &in, __int128_t &a){
    long long x;
    in >> x;
    a = x;
    return in;
}


mt19937 rnd(234);
const lll inf = 3e18;


ll gcd(ll a, ll b){
    while(a != 0){
        b %= a;
        swap(a, b);
    }
    return b;
}


struct bebra{
    lll x, y;

    bebra(){}
    bebra(lll x, lll y) : x(x), y(y) {}

    bebra inv(){
        return bebra(y, x);
    }
};


bool operator<(const bebra &a, const bebra &b){
    return a.x * b.y < a.y * b.x;
}

bool operator<=(const bebra &a, const bebra &b){
    return a.x * b.y <= a.y * b.x;
}



bebra operator+(const bebra &a, const bebra &b){
    return bebra(a.x + b.x, a.y + b.y);
}


bebra operator-(const bebra &a, const bebra &b){
    return bebra(a.x - b.x, a.y - b.y);
}


bebra operator*(const bebra &a, ll f){
    return bebra(a.x * f, a.y * f);
}


bebra min(const bebra &a, const bebra &b){
    if(a < b){
        return a;
    }
    return b;
}


bebra max(const bebra &a, const bebra &b){
    if(a < b){
        return b;
    }
    return a;
}


ll solve_slow(ll a, ll b){
    ll rs = 0;

    bebra l(0, 1);
    bebra r(inf, 1);
    bebra opt(a, b);
    bebra t(0, 0);
    while(t.x < opt.x || t.y < opt.y){
        if(t <= opt){
            l = max(l, t);
            t.x += 1;
        } else{
            r = min(r, t);
            t.y += 1;
        }
        if(l <= t && t < r){
            rs += 1;
        }
    }
    return rs;
}



bebra get_opt(bebra t){
    if(t.x == 1){
        return bebra(0, 1);
    }
    if(t.x < t.y){
        t.y -= t.x;
        auto opt = get_opt(t);
        opt.y += opt.x;
        return opt;
    } else{
        t.x -= t.y;
        auto opt = get_opt(t);
        opt.x += opt.y;
        return opt;
    }
}


ll solve_high(ll a, ll b){
    ll rs = 0;
    while(a != 1){
        auto [na, nb] = get_opt(bebra(a, b));
        ll g = gcd(na, nb);
        na /= g;
        nb /= g;
        ll t = ((a - 1) / na);
        rs += t;
        a = na;
        b = nb;
    }
    return rs;
}



ll solve(ll a, ll b){
    ll rs = 0;
    ll g = gcd(a, b);
    rs += (g - 1) * 2;
    a /= g;
    b /= g;
    if(a == b){
        rs += 1;
        return rs;
    }
    rs += solve_high(a, b);
    bebra l(0, 1);
    bebra r(inf, 1);
    bebra opt(a, b);
    bebra t(0, 0);
    while(t.x < opt.x || t.y < opt.y){
        if(t <= opt){
            l = max(l, t);
            t.x += 1;
        } else{
            r = min(r, t);
            t.y += 1;
        }
        if(opt <= t && t < r){
            rs += 1;
        }
    }
    return rs;
}




void stress(){
    ll mxc = 10;
    ll c = 0;
    while(1){
        cout << ++c << "\n";
        ll a = rnd() % mxc + 1;
        ll b = rnd() % mxc + 1;
        ll right_rs = solve_slow(a, b);
        ll my_rs = solve(a, b);
        if(right_rs != my_rs){
            cout << a << " " << b << "\n";
            break;
        }
    }
}


int32_t main(){
    // stress();
    if(0){
        ios::sync_with_stdio(0);
        cin.tie(0);
        cout.tie(0);
    }
    if(0){
        for(int i = 1; i <= 20; i += 1){
            for(int j = 1; j <= 20; j += 1){
                cout << std::setfill('0') << std::setw(2) << solve_slow(i, j) << " ";
            }
            cout << "\n";
        }
    }
    int t;
    cin >> t;
    while(t--){
        ll a, b;
        cin >> a >> b;
        assert(a <= 1e6 && b <= 1e6);
        cout << solve(a, b) << "\n";
    }
    return 0;
}

/*
6
1 1
3 5
4 7
8 20
4 10
27 21

1
1 10000000000000

*/

詳細信息

Test #1:

score: 4.7619
Accepted
time: 1ms
memory: 3372kb

input:

6
1 1
3 5
4 7
8 20
4 10
27 21

output:

1
5
7
10
6
13

result:

ok 6 lines

Test #2:

score: 4.7619
Accepted
time: 0ms
memory: 3392kb

input:

10
85 13
71 66
28 66
29 71
96 63
38 31
17 68
36 58
36 4
63 33

output:

20
32
12
15
27
16
36
12
15
17

result:

ok 10 lines

Test #3:

score: 4.7619
Accepted
time: 0ms
memory: 3456kb

input:

10
906 527
608 244
263 174
839 281
153 492
987 849
701 390
195 518
410 59
48 971

output:

23
42
50
80
19
31
28
32
30
34

result:

ok 10 lines

Test #4:

score: 4.7619
Accepted
time: 50ms
memory: 3472kb

input:

10
147825 752503
960741 512108
83790 812992
328545 187606
182751 847169
818963 814953
706940 588194
981994 867047
248103 887086
501412 307158

output:

88
68
62
156
76
446
98
58
68
80

result:

ok 10 lines

Test #5:

score: 4.7619
Accepted
time: 24ms
memory: 3480kb

input:

10
681404 333428
181650 647050
229028 687782
657455 275098
58398 718183
365468 24732
503720 479173
556360 20233
694125 203877
617154 619370

output:

95
141
363
54
148
60
88
232
85
564

result:

ok 10 lines

Test #6:

score: 4.7619
Accepted
time: 37ms
memory: 3400kb

input:

10
404235 140228
733083 982834
604701 282642
318592 567367
846008 887551
189157 486078
378169 480062
408938 400339
571460 63131
310407 774407

output:

126
76
73
49
88
58
60
129
178
127

result:

ok 10 lines

Test #7:

score: 4.7619
Accepted
time: 1228ms
memory: 5572kb

input:

10
405251 463150
549854 432108
808582 443624
49509 52183
361422 938598
776469 624844
644904 51183
797412 713474
254877 321065
407957 46299

output:

1403
108
66
68
84
68
1172
21006
46
68

result:

ok 10 lines

Test #8:

score: 0
Dangerous Syscalls

input:

10
663353776591300896 752020665300205866
943526717545269366 300114424946521359
230713640398918611 187010130850175053
118239107794585724 200822570858719651
723715408292350264 396254911812807997
704994781514794709 819815153424097044
296759919488427246 945994708325740034
927030050569777885 705328510163...

output:


result:


Test #9:

score: 0
Dangerous Syscalls

input:

10
263959270418486736 511944810471618212
719955631781742290 884235488590662642
911958183634412763 115875852572241461
882870749898577341 896059443335458468
497522514232414628 118311430658869194
953631769711592758 442130823895113645
516877924612139121 25792863217482507
670853595357487791 2210828766491...

output:


result:


Test #10:

score: 0
Dangerous Syscalls

input:

10
213394634718308650 567314195893526830
118718333481546670 984222666619725683
521169680133050475 379632545405725706
529433210710147101 666030768028277123
248727345489185865 923284915041497532
555027965912713377 803887041840034130
349121089908475057 822348686848065296
607629682756169018 642020332228...

output:


result:


Test #11:

score: 0
Dangerous Syscalls

input:

10
975925299289124420 60303066417239296
766474983477708842 896147119677109501
37292938145223081 40635895974758701
202932421403534375 409995075828727680
269767950521665045 612979965315330039
648872061480630731 203238724068557061
515872085687282128 932457502235646100
752197651492851645 591490401816131...

output:


result:


Test #12:

score: 0
Dangerous Syscalls

input:

10
834598416537042887 606025100334242999
320428844366792646 151368673495529221
842633031722285124 117239895104072930
625021458914788036 949669118025122161
486067279580042617 962611646795744707
819755947652456438 427518443947948205
34030594912010556 588251327521452796
272271618017091404 3833210869571...

output:


result:


Test #13:

score: 0
Dangerous Syscalls

input:

10
397193281271954503 61672130855956143
314492482187282527 654066356498811443
860745630666775130 569333826127128192
476297769468002128 352294660078528480
517761936701389633 534752001708683063
674202688566846814 64972659840190297
585800934763526200 297942354678997984
106591030796636628 31162653946104...

output:


result:


Test #14:

score: 0
Dangerous Syscalls

input:

10
208 565667425097819020
55 157321119038912352
316907676466271933 526
886500984850879616 22
299149363183826900 250
987113150500653689 61
159 670025876873085627
937166187092977629 764
874753340780245712 360
214921484777387769 800038093746969281

output:


result:


Test #15:

score: 0
Dangerous Syscalls

input:

10
166972379813397449 29
569066341265273971 539
506 968039217663997486
352182654566540336 969
121125523365707181 848
517719135958060282 793
738 784126291767169684
298484835440867551 651
603 365907938824348123
910247730461828965 805051032603503065

output:


result:


Test #16:

score: 0
Dangerous Syscalls

input:

10
553486341350597216 428
126 131864838709694768
488211818967176514 885
830 514390130212884291
548964274098890426 286
621370290006585458 204
257458383843435158 856
758 307692053217471135
439 434604040461145810
943589164042917917 667787609709087533

output:


result:


Test #17:

score: 0
Dangerous Syscalls

input:

10
320654112354370136 755
681 573231478158788514
375 855899714394872507
424 703958346499687295
143 455080993131748359
696 741114359393839020
332216328717809233 828
865773491535017948 263
480 875075196649813697
856882629296459076 668553697725070634

output:


result:


Test #18:

score: 0
Dangerous Syscalls

input:

10
450591848507395078 766
970498285745258150 887
867038654838117493 714
443 698101902806352737
387 449758430496187790
928952692836028738 882
378854113906172456 822
74 220142603208608569
442341090408329812 239
44892686468418987 155998982976513680

output:


result:


Test #19:

score: 0
Dangerous Syscalls

input:

10
531086304104565770 690
831665374188973520 355
247416398730469667 416
353278152789250259 494
679360140254826434 522
398 867668761409290914
747 460442302649347038
428 430798781926999813
660522762702293186 303
570848109939810343 23362523897201984

output:


result:


Test #20:

score: 0
Dangerous Syscalls

input:

10
686 681341882408235553
961632287055210199 674
908 102741991216141808
890 138144729944759257
419 829534498941150031
505 624489596307607256
871 609803422000753610
983533393633626409 998
212341556536790997 446
826239058008214318 864102713930342835

output:


result:


Test #21:

score: 0
Dangerous Syscalls

input:

10
976965156031061996 243
843847568805985436 621
573992055384105067 876
586 308437172337246069
448791804432291466 662
34 217523497482835562
619081882696846159 150
175189397944495946 977
654 836460039817622971
654824899345401176 269167483489754436

output:


result: