제출 #702644

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
702644		victor_gao	Naan (JOI19_naan)	C++17	0 / 100	1 ms	468 KiB

naan

//#pragma GCC optimize("Ofast,unroll-loops,O3")
//#pragma GCC optimize("avx,avx2,sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,fma,tune=native")
#include<bits/stdc++.h>
//#include<bits/extc++.h>
//#pragma pack(1)
#define fast ios::sync_with_stdio(0); cin.tie(0);
#define int long long
#define pii pair<int,int>
#define x first
#define y second
using namespace std;
//using namespace __gnu_pbds;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
//typedef tree<int, null_type,less_equal<int>, rb_tree_tag,tree_order_statistics_node_update> order_multiset;
//typedef tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update> order_set;
int n,l,v[10][10],total[10];
pii add(pii a,pii b){
    int up=(a.x*b.y+a.y*b.x);
    int down=(a.y*b.y);
    if (up==0||down==0)
         return {up,down};
    int g=__gcd(up,down);
    return {up/g,down/g};
}
pii sub(pii a,pii b){
    int up=(a.x*b.y-a.y*b.x);
    int down=(a.y*b.y);
    if (up==0||down==0)
         return {up,down};
    int g=__gcd(up,down);
    return {up/g,down/g};
}
pii mul(pii a,pii b){
    int up=a.x*b.x;
    int down=a.y*b.y;
    if (up==0||down==0)
         return {up,down};
    int g=__gcd(up,down);
    return {up/g,down/g};
}
bool bigger(pii a,pii b){
    return a.x*b.y>=a.y*b.x;
}
signed main(){
    fast
    cin>>n>>l;
    for (int i=1;i<=n;i++){
        for (int j=1;j<=l;j++){
            cin>>v[i][j];
            total[i]+=v[i][j];
        }
    }
    int sum=0,p=0;
    pii ans1,ans2={0,1};
    for (int i=1;i<=l;i++){
        if ((sum+v[1][i])*n>=total[1]){
            p=i;
            ans1={(total[1]-sum*n),n*v[1][i]};
            pii last=sub({1,1},ans1);
            ans2=add(ans2,{last.x*v[2][i],last.y});
            break;
        }
        else sum+=v[1][i];
    }
    for (int i=p+1;i<=l;i++)
        ans2=add(ans2,{v[2][i],1});
    if (bigger(ans2,{total[2],n})){
        pii pos=add({p-1,1},ans1);
        cout<<pos.x<<' '<<pos.y<<'\n';
        cout<<1<<" "<<2<<'\n';
    }
    else {
        ans1={0,1}; ans2={0,1};
        p=0; sum=0;
        for (int i=1;i<=l;i++){
            if (bigger(mul(add(ans2,{v[2][i],1}),{n,1}),{total[2],1})){
                p=i;
                ans2={(total[2]-ans2.x*n),n*v[2][i]};
                pii last=sub({1,1},ans2);
                ans1=add(ans1,{last.x*v[1][i],last.y});
                break;
            }
            else ans2=add(ans2,{v[2][i],1});
        }
        for (int i=p+1;i<=l;i++)
            ans1=add(ans1,{v[1][i],1});
        if (bigger(ans1,{total[1],n})){
            pii pos=add({p-1,1},ans2);
            cout<<pos.x<<" "<<pos.y<<"\n2 1\n";
        }
        else cout<<-1<<'\n';    
    }
}

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