Submission #204117

#	Time	Username	Problem	Language	Result	Execution time	Memory
204117		tduong0806	Coin Collecting (JOI19_ho_t4)	C++14	0 / 100	5 ms	380 KiB

joi2019_ho_t4

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
#define int long long
int hmt() {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';if(n) x=-x;return x;}
#define in hmt()
#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 forb(i,BS) for(int i=BS._Find_first();i< BS.size();i = BS._Find_next(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=2e5+10;
int n;
pii a[N];
int l(pii x,pii y)
{
    return abs(x.fi-y.fi)+abs(x.se-y.se);
}
main()
{
    //freopen("JOI2019.inp","r",stdin);
    n=in;
    forinc(i,1,2*n) a[i]={in,in};
    sort(a+1,a+2*n+1);
    int ans=0;
    forinc(i,1,n) ans+=min(l(a[2*i-1],{i,1})+l(a[2*i],{i,2}),l(a[2*i],{i,1})+l(a[2*i-1],{i,2}));
    reverse(a+1,a+2*n+1);
    int kq=0;
    fordec(i,n,1) kq+=min(l(a[2*i-1],{i,1})+l(a[2*i],{i,2}),l(a[2*i],{i,1})+l(a[2*i-1],{i,2}));
    cout<<min(ans,kq)<<"\n";
}

Compilation message (stderr)

joi2019_ho_t4.cpp:29:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main()
      ^

• Subtask 1: 0 / 8
• Subtask 2: 0 / 29
• Subtask 3: 0 / 63