Submission #156297

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
156297	2019-10-05 00:42:51	tduong0806	Tri (CEOI09_tri)	C++14	20 / 100	2079 ms	5808 KiB

tri

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#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
#define int long long
#define in ({int x=0;int c=getchar(),n=0;for(;!isdigit(c);c=getchar()) n=(c=='-');for(;isdigit(c);c=getchar()) x=x*10+c-'0';n?-x:x;})
#define ins ({string x;char c=getchar();for(;c==' '||c=='\n';c=getchar());for(;c!=' '&&c!='\n';c=getchar()) x+=c;x;})
#define forinc(i,a,b) for(int i=a,_b=b;i<=_b;++i)
#define fordec(i,a,b) for(int i=a;i>=b;--i)
#define forv(a,b) for(auto &a:b)
#define pb push_back
#define pii pair<int,int>
#define fi first
#define se second
#define all(a) a.begin(),a.end()
#define reset(f,x) memset(f,x,sizeof(f))
#define bit(x,i) ((x>>(i-1))&1)
#define onbit(x,i) (x|(1<<(i-1)))
#define offbit(x,i) (x&~(1<<(i-1)))
const int N=1e5+10;
int n,m;
pii a[N];
bool cmp(pii u,pii v)
{
    return 1ll*u.fi*v.se>1ll*v.fi*u.se;
}
ll S(pii a,pii b,pii c)
{
    ll ret=0;
    ret=ret+1ll*(a.fi-b.fi)*(a.se+b.se);
 
 
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Compilation message (stderr)

tri.cpp:39:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main()
      ^

• Subtask 1: 20 / 100