Submission #1769134
Source Code Expand
#include<bits/stdc++.h>
#define N 205
using namespace std;
#define db double
#define eps 1e-8
struct point{db x,y;};
point operator +(point a,point b){return (point){a.x+b.x,a.y+b.y};}
point operator -(point a,point b){return (point){a.x-b.x,a.y-b.y};}
db operator *(point a,point b){return a.x*b.y-b.x*a.y;}
point operator *(point a,db x){return (point){a.x*x,a.y*x};}
point operator /(point a,db x){return (point){a.x/x,a.y/x};}
bool a_onleft(point a,point b){return a*b<-eps;}
db area(point a,point b,point c){return abs((a-c)*(b-c)/2.0);}
point inter(point a1,point a2,point b1,point b2){
double s1=area(b1,b2,a1),s2=area(b1,b2,a2);
return (a1-a2)/(s1+s2)*s2+a2;
}
#undef db
#undef eps
const int mod=998244353;
point p[N];
int n,pw[N];
int main(){
scanf("%d",&n);pw[0]=1;
for(int i=1;i<=n;i++) scanf("%lfq%lf",&p[i].x,&p[i].y),pw[i]=pw[i-1]*2%mod;
long long ans=pw[n]-1-n;
for(int i=1;i<=n;i++)
for(int j=i+1;j<=n;j++){
int cnt=0;
for(int k=j+1;k<=n;k++)
if(area(p[i],p[j],p[k])<1e-8) cnt++;
ans-=pw[cnt];
}
cout<<(ans%mod+mod)%mod<<endl;
return 0;
}
Submission Info
Submission Time |
|
Task |
E - ConvexScore |
User |
Wuvin |
Language |
C++14 (GCC 5.4.1) |
Score |
0 |
Code Size |
1118 Byte |
Status |
WA |
Exec Time |
5 ms |
Memory |
384 KB |
Compile Error
./Main.cpp: In function ‘int main()’:
./Main.cpp:25:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d",&n);pw[0]=1;
^
./Main.cpp:26:76: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
for(int i=1;i<=n;i++) scanf("%lfq%lf",&p[i].x,&p[i].y),pw[i]=pw[i-1]*2%mod;
^
Judge Result
Set Name |
Sample |
All |
Score / Max Score |
0 / 0 |
0 / 700 |
Status |
|
|
Set Name |
Test Cases |
Sample |
0_000.txt, 0_001.txt, 0_002.txt |
All |
0_000.txt, 0_001.txt, 0_002.txt, 1_003.txt, 1_004.txt, 1_005.txt, 1_006.txt, 1_007.txt, 1_008.txt, 1_009.txt, 1_010.txt, 1_011.txt, 1_012.txt, 1_013.txt, 1_014.txt, 1_015.txt, 1_016.txt, 1_017.txt, 1_018.txt, 1_019.txt, 1_020.txt, 1_021.txt, 1_022.txt, 1_023.txt, 1_024.txt, 1_025.txt, 1_026.txt, 1_027.txt, 1_028.txt, 1_029.txt, 1_030.txt, 1_031.txt, 1_032.txt, 1_033.txt, 1_034.txt, 1_035.txt |
Case Name |
Status |
Exec Time |
Memory |
0_000.txt |
WA |
3 ms |
384 KB |
0_001.txt |
WA |
1 ms |
256 KB |
0_002.txt |
AC |
1 ms |
256 KB |
1_003.txt |
AC |
1 ms |
256 KB |
1_004.txt |
WA |
1 ms |
256 KB |
1_005.txt |
WA |
2 ms |
256 KB |
1_006.txt |
WA |
1 ms |
256 KB |
1_007.txt |
WA |
3 ms |
256 KB |
1_008.txt |
WA |
2 ms |
256 KB |
1_009.txt |
WA |
3 ms |
256 KB |
1_010.txt |
WA |
2 ms |
256 KB |
1_011.txt |
WA |
3 ms |
256 KB |
1_012.txt |
WA |
3 ms |
256 KB |
1_013.txt |
WA |
2 ms |
256 KB |
1_014.txt |
WA |
1 ms |
256 KB |
1_015.txt |
AC |
3 ms |
256 KB |
1_016.txt |
AC |
2 ms |
256 KB |
1_017.txt |
WA |
5 ms |
256 KB |
1_018.txt |
WA |
5 ms |
256 KB |
1_019.txt |
WA |
5 ms |
256 KB |
1_020.txt |
WA |
5 ms |
256 KB |
1_021.txt |
WA |
5 ms |
256 KB |
1_022.txt |
WA |
5 ms |
256 KB |
1_023.txt |
WA |
5 ms |
256 KB |
1_024.txt |
WA |
5 ms |
256 KB |
1_025.txt |
WA |
5 ms |
256 KB |
1_026.txt |
WA |
5 ms |
256 KB |
1_027.txt |
AC |
5 ms |
256 KB |
1_028.txt |
AC |
5 ms |
256 KB |
1_029.txt |
WA |
5 ms |
256 KB |
1_030.txt |
WA |
5 ms |
256 KB |
1_031.txt |
WA |
5 ms |
256 KB |
1_032.txt |
WA |
5 ms |
256 KB |
1_033.txt |
WA |
5 ms |
256 KB |
1_034.txt |
WA |
5 ms |
256 KB |
1_035.txt |
WA |
5 ms |
256 KB |