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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 |
---|---|---|---|---|---|---|---|---|---|
#22702 | #2365. Flight Collision | LFCode# | WA | 49ms | 8860kb | C++14 | 1.3kb | 2022-03-10 15:32:40 | 2022-04-30 01:33:17 |
Judging History
answer
//什么时候我才能有杜爷一半强啊/kk
#include<cstdio>
#include<queue>
#include<set>
using namespace std;
const int N=100086;
int n,a[N],v[N];
struct infor{
double t;int x,y;infor(){}
infor(double tme,int a,int b){t=tme;x=a;y=b;}
bool operator <(const infor x)const{return t>x.t;}
};
priority_queue<infor>q;
set<int>s;
int read(){
char ch=getchar();int nn=0,ssss=1;
while(ch<'0'||ch>'9'){if(ch=='-')ssss*=-1;ch=getchar();}
while(ch>='0'&&ch<='9'){nn=nn*10+(ch-'0');ch=getchar();}
return nn*ssss;
}
bool push(int x,int y){
if(x<y)x^=y^=x^=y;if(v[x]>=v[y])return false;
double T=1.0*(a[x]-a[y])/(1.0*(v[y]-v[x]));
//printf("%d %d %.5lf\n",x,y,T);
q.push(infor(T,x,y));return true;
}
int main(){
n=read();
for(int i=1;i<=n;i++){
a[i]=read();v[i]=read();
if(i>1)push(i,i-1);
s.insert(i);
}
while(q.size()&&s.size()){
infor np=q.top();q.pop();
if(!(s.count(np.x)&&s.count(np.y)))continue;
s.erase(np.x);s.erase(np.y);
if(!s.size())break;
set<int>::iterator x=s.upper_bound(np.x);
if(x==s.end())continue;
set<int>::iterator y=s.lower_bound(np.y);
if(y==s.begin())continue;y--;
push(*x,*y);
}
printf("%d\n",s.size());
for(set<int>::iterator it=s.begin();it!=s.end();it++)
printf("%d ",*it);
}
详细
Test #1:
score: 100
Accepted
time: 1ms
memory: 3124kb
input:
1 -4 13
output:
1 1
result:
ok 2 lines
Test #2:
score: 0
Accepted
time: 0ms
memory: 3036kb
input:
5 1 1000000000 2 1000000000 3 -1000000000 4 -1000000000 5 -1000000000
output:
1 5
result:
ok 2 lines
Test #3:
score: 0
Accepted
time: 3ms
memory: 3168kb
input:
3 -1000000000 1 999999999 0 1000000000 0
output:
1 3
result:
ok 2 lines
Test #4:
score: 0
Accepted
time: 2ms
memory: 3128kb
input:
2 5 4 10 5
output:
2 1 2
result:
ok 2 lines
Test #5:
score: 0
Accepted
time: 0ms
memory: 3164kb
input:
9 10 10 20 7 30 5 40 0 42 0 50 -1 60 -2 70 -10 80 -12
output:
1 1
result:
ok 2 lines
Test #6:
score: 0
Accepted
time: 0ms
memory: 3200kb
input:
5 10 0 20 0 30 1 40 0 50 0
output:
3 1 2 5
result:
ok 2 lines
Test #7:
score: 0
Accepted
time: 39ms
memory: 8568kb
input:
98765 0 -48539 1 -48539 2 -48539 3 -48539 4 -48539 5 -48539 6 -48539 7 -48539 8 -48539 9 -48539 10 -48539 11 -48539 12 -48539 13 -48539 14 -48539 15 -48539 16 -48539 17 -48539 18 -48539 19 -48539 20 -48539 21 -48539 22 -48539 23 -48539 24 -48539 25 -48539 26 -48539 27 -48539 28 -48539 29 -48539 30 -...
output:
98765 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 10...
result:
ok 2 lines
Test #8:
score: -100
Wrong Answer
time: 49ms
memory: 8860kb
input:
99999 -999999396 999999395 -999971669 999999396 -999971668 -999999396 -999961260 999999396 -999961259 -999999396 -999907239 999999396 -999907238 -999999396 -999754561 999999396 -999754560 -999999396 -999662011 999999396 -999662010 -999999396 -999651505 999999396 -999651504 -999999396 -999619141 9999...
output:
1 1
result:
wrong answer 2nd lines differ - expected: '99999', found: '1 '