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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#553982#9158. 分数jay_jayjay#50 2721ms19804kbC++171.8kb2024-09-09 00:37:192024-09-09 00:37:19

Judging History

你现在查看的是最新测评结果

  • [2024-09-09 00:37:19]
  • 评测
  • 测评结果:50
  • 用时:2721ms
  • 内存:19804kb
  • [2024-09-09 00:37:19]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define inf 0x3f3f3f3f
#define infl 0x3f3f3f3f3f3f3f3f

#define all(x) (x).begin(),(x).end()

struct { template<class T> operator T() { int x; cin >> x; return x; } } in;

#define N 8000

struct Pre {
        bitset<N> g[N+1];
        bitset<N> a[N+1];

        constexpr Pre() : g{}, a{} {
                for(int i=1;i<=N;i++)
                        for(int j=1;j<=N;j++)
                                if(gcd(i,j)==1 && (i<=j/2||i>=2*j)) g[i][j]=1;

                [&](){
                deque<array<int,2>> q;
                q.push_back({1,2});
                while(q.size()) {
                        auto [i,j] = q.front(); q.pop_front();
                        if(a[i][j]==1) continue;
                        //if(i<10&&j<10)printf("vis %d %d\n",i,j);

                        a[i][j]=1;
                        auto trans = [&](int ii, int jj) -> void {
                                if(ii>0 && ii<=N && jj<=N && g[ii][jj])
                                        q.push_back({ii,jj});
                        };
                        trans(j,i);
                        trans(i+2*j,j);
                        trans(i-2*j,j);
                }
                }();
        }
} p;
auto&g=p.g;
auto&a=p.a;


int main()
{
        int n=in, m=in;


        for(int i=1;i<=n;i++)
                for(int j=m+1;j<=N;j++) g[i][j]=0;
        for(int i=n+1;i<N;i++)
                for(int j=1;j<=N;j++) g[i][j]=0;

        //for(int i=1;i<=n;i++)
                //for(int j=1;j<=m;j++)
                        //if(a[i][j]) printf("%d %d\n",i,j);

        int cnt=0;
        for(int i=1;i<=n;i++) cnt += (g[i]&a[i]).count();

        printf("%d\n",cnt);
}

Details

Tip: Click on the bar to expand more detailed information

Pretests

Pretest #1:

score: 5
Accepted
time: 2719ms
memory: 19728kb

input:

99 99

output:

406

result:

ok 1 number(s): "406"

Pretest #2:

score: 5
Accepted
time: 2721ms
memory: 19524kb

input:

98 97

output:

405

result:

ok 1 number(s): "405"

Pretest #3:

score: 5
Accepted
time: 2718ms
memory: 19464kb

input:

99 96

output:

396

result:

ok 1 number(s): "396"

Pretest #4:

score: 5
Accepted
time: 2710ms
memory: 19444kb

input:

995 977

output:

11153

result:

ok 1 number(s): "11153"

Pretest #5:

score: 5
Accepted
time: 2717ms
memory: 19800kb

input:

991 990

output:

11220

result:

ok 1 number(s): "11220"

Pretest #6:

score: 5
Accepted
time: 2715ms
memory: 19804kb

input:

976 968

output:

10900

result:

ok 1 number(s): "10900"

Pretest #7:

score: 5
Accepted
time: 2641ms
memory: 19396kb

input:

7602 7864

output:

215706

result:

ok 1 number(s): "215706"

Pretest #8:

score: 5
Accepted
time: 2636ms
memory: 19696kb

input:

7959 7735

output:

220256

result:

ok 1 number(s): "220256"

Pretest #9:

score: 5
Accepted
time: 2635ms
memory: 19436kb

input:

7878 7863

output:

221162

result:

ok 1 number(s): "221162"

Pretest #10:

score: 5
Accepted
time: 2641ms
memory: 19436kb

input:

7788 7658

output:

215323

result:

ok 1 number(s): "215323"

Pretest #11:

score: 0
Runtime Error

input:

95399 99767

output:


result:


Pretest #12:

score: 0
Runtime Error

input:

98051 99642

output:


result:


Pretest #13:

score: 0
Runtime Error

input:

95624 96007

output:


result:


Pretest #14:

score: 0
Runtime Error

input:

99208 98047

output:


result:


Pretest #15:

score: 0
Runtime Error

input:

997417 967722

output:


result:


Pretest #16:

score: 0
Runtime Error

input:

987807 956529

output:


result:


Pretest #17:

score: 0
Runtime Error

input:

971654 984345

output:


result:


Pretest #18:

score: 0
Runtime Error

input:

7892259 7983727

output:


result:


Pretest #19:

score: 0
Runtime Error

input:

7937869 29796968

output:


result:


Pretest #20:

score: 0
Runtime Error

input:

29717543 29510173

output:


result:



Final Tests

Test #1:

score: 5
Accepted
time: 2718ms
memory: 19400kb

input:

96 98

output:

396

result:

ok 1 number(s): "396"

Test #2:

score: 5
Accepted
time: 2711ms
memory: 19728kb

input:

100 99

output:

408

result:

ok 1 number(s): "408"

Test #3:

score: 5
Accepted
time: 2717ms
memory: 19444kb

input:

99 99

output:

406

result:

ok 1 number(s): "406"

Test #4:

score: 5
Accepted
time: 2714ms
memory: 19444kb

input:

963 951

output:

10634

result:

ok 1 number(s): "10634"

Test #5:

score: 5
Accepted
time: 2714ms
memory: 19444kb

input:

958 974

output:

10795

result:

ok 1 number(s): "10795"

Test #6:

score: 5
Accepted
time: 2713ms
memory: 19524kb

input:

966 990

output:

11003

result:

ok 1 number(s): "11003"

Test #7:

score: 5
Accepted
time: 2631ms
memory: 19460kb

input:

7958 7947

output:

224482

result:

ok 1 number(s): "224482"

Test #8:

score: 5
Accepted
time: 2642ms
memory: 19532kb

input:

7623 7730

output:

213444

result:

ok 1 number(s): "213444"

Test #9:

score: 5
Accepted
time: 2637ms
memory: 19528kb

input:

7845 7783

output:

218916

result:

ok 1 number(s): "218916"

Test #10:

score: 5
Accepted
time: 2643ms
memory: 19500kb

input:

7881 7773

output:

219451

result:

ok 1 number(s): "219451"

Test #11:

score: 0
Runtime Error

input:

99414 98698

output:


result:


Test #12:

score: 0
Runtime Error

input:

98249 96148

output:


result:


Test #13:

score: 0
Runtime Error

input:

99003 96832

output:


result:


Test #14:

score: 0
Runtime Error

input:

98266 96030

output:


result:


Test #15:

score: 0
Runtime Error

input:

968207 958885

output:


result:


Test #16:

score: 0
Runtime Error

input:

959846 998397

output:


result:


Test #17:

score: 0
Runtime Error

input:

965821 972280

output:


result:


Test #18:

score: 0
Runtime Error

input:

7855098 7962479

output:


result:


Test #19:

score: 0
Runtime Error

input:

7841076 29648718

output:


result:


Test #20:

score: 0
Runtime Error

input:

29365129 29012208

output:


result: