Submission #315774

#	Time	Username	Problem	Language	Result	Execution time	Memory
315774		daniel920712	Costinland (info1cup19_costinland)	C++14	52.93 / 100	4 ms	600 KiB

costinland

#include <iostream>
#include <stdio.h>
#include <stdlib.h>
#include <vector>
#include <queue>
#include <map>
 
using namespace std;
long long con[205][205]={0};
vector < pair < long long , long long > > all;
vector < char > ans[205];
//priority_queue < pair < long long , pair < long long , long long > > ,vector < pair < long long , pair < long long , long long > > >, less < pair < long long , pair < long long , long long > > > > how;
map < long long , pair < long long , long long > > how;
int main()
{
    long long i,j,N=0,M=0,now=0,n,last;
    scanf("%lld",&n);
    con[1][1]=1;
    if(n<=19)
    {
        for(i=1;i<=4;i++)
        {
            for(j=1;j<=4;j++)
            {
                if(i>1&&con[i-1][j]>=0) con[i][j]+=con[i-1][j];
                else if(i>1) con[i][j]=-1e18;
                if(j>1&&con[i][j-1]>=0) con[i][j]+=con[i][j-1];
                else if(j>1) con[i][j]=-1e18;
                if(con[i][j]>n) con[i][j]=-1e18;
                else
                {
                    if(how.find(con[i][j])==how.end()) how[con[i][j]]=make_pair(i,j);
                    else if(j<how[con[i][j]].second) how[con[i][j]]=make_pair(i,j);
                }
 
            }
        }
    }
    else
    {
        for(i=1;i<=100;i++)
        {
            for(j=1;j<=100;j++)
            {
                if(i>1&&con[i-1][j]>=0) con[i][j]+=con[i-1][j];
                else if(i>1) con[i][j]=-1e18;
                if(j>1&&con[i][j-1]>=0) con[i][j]+=con[i][j-1];
                else if(j>1) con[i][j]=-1e18;
                if(con[i][j]>n) con[i][j]=-1e18;
                else
                {
                    if(how.find(con[i][j])==how.end()) how[con[i][j]]=make_pair(i,j);
                    else if(j<how[con[i][j]].second) how[con[i][j]]=make_pair(i,j);
                }
            }
        }
    }
 
    while(n)
    {
        //printf("%lld\n",n);
        while(n<prev(how.end())->first) how.erase(prev(how.end()));
        all.push_back(prev(how.end())->second);
        n-=prev(how.end())->first;
        N=max(N,prev(how.end())->second.first);
        M+=prev(how.end())->second.second;
    }
    //printf("%lld %lld\n",N,M);
    N=max(N,(long long) 48);
    for(i=0;i<=N;i++)
    {
        for(j=0;j<M;j++) ans[i].push_back('X');
 
 
    }
    for(j=0;j<M;j++) ans[0][j]='r';
 
    for(auto i:all)
    {
        //printf("%lld %lld\n",i.first,i.second);
        ans[0][now]='X';
        last=now;
        for(j=1;j<=N;j++) ans[j][now+i.second-1]='d';
        for(j=1;j<=N-i.first;j++) ans[j][now]='d';
        now+=i.second;
    }
    ans[0][last]='d';
    for(i=0;i<N;i++) ans[i][M-1]='d';
    for(i=0;i<M;i++) ans[N][i]='r';
    ans[N][M-1]='.';
    printf("%lld %lld\n",N+1,M);
    for(i=0;i<=N;i++)
    {
        for(j=0;j<M;j++) printf("%c",ans[i][j]);
        printf("\n");
    }
 
    return 0;
}

Compilation message (stderr)

costinland.cpp: In function 'int main()':
costinland.cpp:17:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   17 |     scanf("%lld",&n);
      |     ~~~~~^~~~~~~~~~~
costinland.cpp:16:35: warning: 'last' may be used uninitialized in this function [-Wmaybe-uninitialized]
   16 |     long long i,j,N=0,M=0,now=0,n,last;
      |                                   ^~~~

• Subtask 1: 10.955465588 / 20
• Subtask 2: 41.972602736000006 / 80