QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#553982 | #9158. 分数 | jay_jayjay# | 50 | 2721ms | 19804kb | C++17 | 1.8kb | 2024-09-09 00:37:19 | 2024-09-09 00:37:19 |
Judging History
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