Submission #588189

#	Time	Username	Problem	Language	Result	Execution time	Memory
588189		Deepesson	Languages (IOI10_languages)	C++17	75 / 100	1943 ms	42304 KiB

lang

#include <bits/stdc++.h>
#include "lang.h"
#include "grader.h"
#define fi first
#define se second
#define pb push_back

using ll = long long;
ll lang[60][66000];
std::unordered_map<int,int> mapa[60];
std::unordered_map<int,int> mapa2[60];
std::unordered_map<int,int> mapa3[60];
ll tot[60];
ll duptot[60];
ll duptot2[60];
ll duptot3[60];
void excerpt(int *E)
{

    {
        int best=0;double score=0;
        for(int i=0;i!=60;++i){
            if(tot[i]>1000){
                for(int j=0;j!=100;++j){
                    if(!lang[i][E[j]]){
                        goto fail;
                    }
                }
                goto prox;
                fail:{}
                continue;
                prox:{}
            }
            if(!tot[i])continue;
            double bonus=0;
            for(int j=0;j!=99;++j){
                ll ind = E[j] * 100000 +  (E[j+1]);
                auto it = mapa[i].find(ind);
                if(it!=mapa[i].end())
                bonus+=(double)(it->second);
            }
            bonus/=tot[i];
            double kbonus=0;
            for(int j=0;j!=98;++j){
                ll ind = E[j] * 100000 +  (E[j+1]);
                ind = ind *  100000 + E[j+2];
                auto it = mapa2[i].find(ind);
                if(it!=mapa2[i].end())
                kbonus+=(double)(it->second)*10.0;
            }
            kbonus/=(double)duptot2[i];
            double nbonus=0;
            for(int j=0;j!=97;++j){
                ll ind = E[j] * 100000 +  (E[j+1]);
                ind = ind *  100000 + E[j+2];
                ind = ind *  100000 + E[j+3];
                auto it = mapa3[i].find(ind);
                if(it!=mapa3[i].end())
                nbonus+=(double)(it->second)*50.0;
            }
            nbonus/=(double)duptot3[i];
            bonus+=nbonus;
            bonus+=kbonus;
            if(bonus>=score){
                best=i;
                score=bonus;
                continue;
            }
        }
        int k = language(best);
        for(int i=0;i!=100;++i){
            tot[k]++;
            lang[k][E[i]]++;
        }
        for(int j=0;j!=99;++j){
            ll ind = E[j] * 100000 +  (E[j+1]);
            mapa[k][ind]++;
            duptot[k]++;
        }
        for(int j=0;j!=98;++j){
            ll ind = E[j] * 100000 +  (E[j+1]);
            ind = ind *  100000 + E[j+2];
            mapa2[k][ind]++;
            duptot2[k]++;
        }
        for(int j=0;j!=97;++j){
            ll ind = E[j] * 100000 +  (E[j+1]);
            ind = ind *  100000 + E[j+2];
            ind = ind *  100000 + E[j+3];
            mapa3[k][ind]++;
            duptot3[k]++;
        }
    }
}

• Subtask 1: 30 / 30
• Subtask 2: 45 / 80