QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#493478 | #9158. 分数 | Dawnq# | 50 | 5815ms | 377972kb | C++14 | 1.0kb | 2024-07-27 09:41:56 | 2024-07-27 09:41:58 |
Judging History
answer
#include<bits/stdc++.h>
#define fi first
#define se second
using namespace std;
typedef pair<int,int> pii;
const int N=1e5+5;
int n,m;
unordered_map<int,int>mp[N];
inline bool Check(int x,int y){
return 1<=x&&x<=1e5&&1<=y&&y<=1e5&&!mp[x].count(y)&&(y>=2*x||x>=2*y);
}
signed main(){
// freopen("ex_2.in","r",stdin);
// freopen(".out","w",stdout);
std::ios::sync_with_stdio(false);
cin.tie(0),cout.tie(0);
cin>>n>>m;
queue<pii>q;
q.push(pii(1,2)),mp[1][2]=true;
while(!q.empty()){
pii u=q.front();q.pop();
int x=u.fi,y=u.se,tx,ty,g;
if(Check(y,x))q.push(pii(y,x)),mp[y][x]=true;
if(x>y*2){
tx=x-y*2,ty=y,g=__gcd(tx,ty),tx/=g,ty/=g;
if(Check(tx,ty))q.push(pii(tx,ty)),mp[tx][ty]=true;
}
tx=x+y*2,ty=y,g=__gcd(tx,ty),tx/=g,ty/=g;
if(Check(tx,ty))q.push(pii(tx,ty)),mp[tx][ty]=true;
}
int Ans=0;
for(int i=1;i<=n;++i){
for(auto j:mp[i])Ans+=j.fi<=m;
}
cout<<Ans;
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Pretests
Pretest #1:
score: 5
Accepted
time: 5468ms
memory: 377952kb
input:
99 99
output:
406
result:
ok 1 number(s): "406"
Pretest #2:
score: 5
Accepted
time: 5474ms
memory: 377812kb
input:
98 97
output:
405
result:
ok 1 number(s): "405"
Pretest #3:
score: 5
Accepted
time: 5417ms
memory: 377832kb
input:
99 96
output:
396
result:
ok 1 number(s): "396"
Pretest #4:
score: 5
Accepted
time: 5442ms
memory: 377800kb
input:
995 977
output:
11153
result:
ok 1 number(s): "11153"
Pretest #5:
score: 5
Accepted
time: 5479ms
memory: 377968kb
input:
991 990
output:
11220
result:
ok 1 number(s): "11220"
Pretest #6:
score: 5
Accepted
time: 5486ms
memory: 377832kb
input:
976 968
output:
10900
result:
ok 1 number(s): "10900"
Pretest #7:
score: 5
Accepted
time: 5626ms
memory: 377828kb
input:
7602 7864
output:
215706
result:
ok 1 number(s): "215706"
Pretest #8:
score: 5
Accepted
time: 5655ms
memory: 377964kb
input:
7959 7735
output:
220256
result:
ok 1 number(s): "220256"
Pretest #9:
score: 5
Accepted
time: 5648ms
memory: 377956kb
input:
7878 7863
output:
221162
result:
ok 1 number(s): "221162"
Pretest #10:
score: 5
Accepted
time: 5624ms
memory: 377956kb
input:
7788 7658
output:
215323
result:
ok 1 number(s): "215323"
Pretest #11:
score: 0
Time Limit Exceeded
input:
95399 99767
output:
result:
Pretest #12:
score: 0
Time Limit Exceeded
input:
98051 99642
output:
result:
Pretest #13:
score: 0
Time Limit Exceeded
input:
95624 96007
output:
result:
Pretest #14:
score: 0
Time Limit Exceeded
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: 5468ms
memory: 377968kb
input:
96 98
output:
396
result:
ok 1 number(s): "396"
Test #2:
score: 5
Accepted
time: 5434ms
memory: 377956kb
input:
100 99
output:
408
result:
ok 1 number(s): "408"
Test #3:
score: 5
Accepted
time: 5411ms
memory: 377804kb
input:
99 99
output:
406
result:
ok 1 number(s): "406"
Test #4:
score: 5
Accepted
time: 5464ms
memory: 377824kb
input:
963 951
output:
10634
result:
ok 1 number(s): "10634"
Test #5:
score: 5
Accepted
time: 5483ms
memory: 377864kb
input:
958 974
output:
10795
result:
ok 1 number(s): "10795"
Test #6:
score: 5
Accepted
time: 5477ms
memory: 377824kb
input:
966 990
output:
11003
result:
ok 1 number(s): "11003"
Test #7:
score: 5
Accepted
time: 5763ms
memory: 377968kb
input:
7958 7947
output:
224482
result:
ok 1 number(s): "224482"
Test #8:
score: 5
Accepted
time: 5815ms
memory: 377884kb
input:
7623 7730
output:
213444
result:
ok 1 number(s): "213444"
Test #9:
score: 5
Accepted
time: 5586ms
memory: 377972kb
input:
7845 7783
output:
218916
result:
ok 1 number(s): "218916"
Test #10:
score: 5
Accepted
time: 5641ms
memory: 377828kb
input:
7881 7773
output:
219451
result:
ok 1 number(s): "219451"
Test #11:
score: 0
Time Limit Exceeded
input:
99414 98698
output:
result:
Test #12:
score: 0
Time Limit Exceeded
input:
98249 96148
output:
result:
Test #13:
score: 0
Time Limit Exceeded
input:
99003 96832
output:
result:
Test #14:
score: 0
Time Limit Exceeded
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