Submission #152249

#	Time	Username	Problem	Language	Result	Execution time	Memory
152249		username	Naan (JOI19_naan)	C++14	29 / 100	585 ms	64564 KiB

naan

#pragma GCC optimize("O3")
#include<bits/stdc++.h>
#define int int_fast64_t
using namespace std;
typedef pair<int,int> pii;
#define REP(i,j,k) for(register int i=(j);i<(k);++i)
#define f first
#define s second
#define endl '\n'
#define IOS cin.tie(0),cout.tie(0),ios_base::sync_with_stdio(false)

const int maxn=2009;
int n,l,p[maxn],v[maxn][maxn];
bitset<maxn>us;

main(){
	IOS;
	cin>>n>>l;
	REP(i,0,n){
		v[i][0]=0;
		REP(j,0,l)cin>>v[i][j+1],v[i][j+1]+=v[i][j];
	}
	pii cur={0,1};
	REP(i,1,n){
		int opt=-1;
		pii ls={1,0};
		REP(j,0,n){
			if(us[j])continue;
			int k=cur.f/cur.s;
			pii t={v[j][k]*n*cur.s+(v[j][k+1]-v[j][k])*(cur.f%cur.s)*n+v[j][l]*cur.s,n*cur.s};
//			assert(v[j][k]*n*cur.s<7e18);
			while((__int128)v[j][k+1]*t.s<=t.f)++k;
			int vv=v[j][k+1]-v[j][k];
			t={k*vv*n+((__int128)t.f*n+t.s-1)/t.s-v[j][k]*n,vv*n};
			assert(t.f<4e11);
			assert(t.f>=0);
			if((__int128)t.f*ls.s<(__int128)ls.f*t.s)opt=j,ls=t;
		}
		p[i]=opt;
		us[opt]=1;
		cur=ls;
		cout<<ls.f<<" "<<ls.s<<endl;
	}
	REP(i,1,n)cout<<p[i]+1<<" ";
	REP(i,0,n)if(!us[i])cout<<i+1<<endl;
}

Compilation message (stderr)

naan.cpp:16:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main(){
      ^

• Subtask 1: 5 / 5
• Subtask 2: 24 / 24
• Subtask 3: 0 / 71