Submission #292909

#	Time	Username	Problem	Language	Result	Execution time	Memory
292909		Fidisk	A Game with Grundy (CCO20_day1problem1)	C++14	0 / 25	1 ms	384 KiB

Main

#include <bits/stdc++.h>
using namespace std;

#define oo 1e18
#define fi first
#define se second
#define sp(iiii) setprecision(iiii)
#define IO ios_base::sync_with_stdio(false); cin.tie(0)
#define ms(aaaa,xxxx) memset(aaaa,xxxx,sizeof(aaaa))
#define cntbit(xxxx) __builtin_popcount(xxxx)
#define getbit(xxxx,aaaa) ((xxxx>>(aaaa-1))&1)
#define _cos(xxxx) cos(xxxx*acos(-1)/180)
#define _sin(xxxx) sin(xxxx*acos(-1)/180)
#define _tan(xxxx) tan(xxxx*acos(-1)/180)
#define PE cout<<fixed

typedef long double ld;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef pair<pair<int,int>,int> piii;
typedef pair<long long,long long> pll;
typedef pair<pair<long long,long long>,long long> plll;

const ld pi=acos(-1);

ll n,l,r,y,i,x,v,h,pl,pr,sl,last,cur,res[500009],ans[500009];
pll a[500009];

int main() {
    IO;
    cin>>n;
    cin>>l>>r>>y;
    for (i=1;i<=n;i++) {
        cin>>x>>v>>h;
        pl=x+ceil((-(((ld)h)*((ld)y))/((ld)v)));
        pr=x+floor(((((ld)h)*((ld)y))/((ld)v)));
        if ((h*y)%v==0) {
            pl++;
            pr--;
        }
        //cout<<pl<<' '<<pr<<' '<<((ld)(-(((ld)h)*((ld)y))/((ld)v)))<<' '<<((ld)((((ld)h)*((ld)y))/((ld)v)))<<'\n';
        a[i*2-1]={pl,1};
        a[i*2]={pr+1,-1};
    }
    sort(a+1,a+n+n+1);
    last=l;
    cur=0;
    for (i=1;i<=2*n;i++) {
        res[cur]+=max(a[i].fi-last,i-i);
        cur+=a[i].se;
        last=max(last,min(a[i].fi,r));
    }
    ans[n]=(r-l)+1;
    for (i=n-1;i>=0;i--) {
        ans[i]=ans[i+1]-res[i+1];
    }
    for (i=0;i<=n;i++) {
        cout<<ans[i]<<'\n';
    }
    /*
    cout<<'\n';
    for (i=1;i<=2*n;i++) {
        cout<<a[i].fi<<' ';
    }
    cout<<'\n';
    for (i=1;i<=2*n;i++) {
        cout<<a[i].se<<' ';
    }
    */
}

• Subtask 1: 0 / 15
• Subtask 2: 0 / 10