oj.uz

답안 #576783

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
576783 2022-06-13T13:29:02 Z zaneyu 저장 (Saveit) (IOI10_saveit) C++14
100 / 100
 257 ms 11092 KB 
#include "grader.h"
#include "encoder.h"

#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
//order_of_key #of elements less than x
// find_by_order kth element
typedef long long int ll;
#define ld long double
#define pii pair<ll,int>
typedef tree<pii, null_type, less<pii>, rb_tree_tag, tree_order_statistics_node_update> indexed_set;
#define f first
#define s second
#define pb push_back
#define REP(i,n) for(int i=0;i<n;i++)
#define REP1(i,n) for(int i=1;i<=n;i++)
#define FILL(n,x) memset(n,x,sizeof(n))
#define ALL(_a) _a.begin(),_a.end()
#define sz(x) (int)x.size()
#define lowb(x) x&(-x)
#define MNTO(x,y) x=min(x,(__typeof__(x))y)
#define MXTO(x,y) x=max(x,(__typeof__(x))y)
#define SORT_UNIQUE(c) (sort(c.begin(),c.end()), c.resize(distance(c.begin(),unique(c.begin(),c.end()))))
#define GET_POS(c,x) (lower_bound(c.begin(),c.end(),x)-c.begin())
namespace {
    vector<int> v[1005],g[1005];
    int dist[1005];
    void send(int x){
        REP(i,10){
            encode_bit((x>>(9-i))&1);
        }
    }
    int par[1005];
    bool vis[1005];
    void dfs(int u,int p){
        par[u]=p;
        vis[u]=1;
        for(int x:v[u]){
            if(!vis[x]) dfs(x,u);
        }
    }
}
void encode(int nv, int nh, int ne, int *v1, int *v2){
    REP(i,ne){
        v[v1[i]].pb(v2[i]);
        v[v2[i]].pb(v1[i]);
    }
    dfs(0,-1);
    REP1(i,nv-1){
        send(par[i]);
    }
    vector<pii> eds;
    vector<int> vv;
    REP(i,nh){
        REP(j,nv) dist[j]=1e9;
        dist[i]=0;
        queue<int> q;
        q.push(i);
        while(sz(q)){
            int z=q.front();
            q.pop();
            for(int x:v[z]){
                if(dist[x]>dist[z]+1){
                    g[z].pb(x);
                    dist[x]=dist[z]+1;
                    q.push(x);
                }
            }
        }
        REP1(j,nv-1){
            vv.pb(1+dist[j]-dist[par[j]]);
        }
    }   
    while(sz(vv)%3) vv.pb(0);
    REP(i,sz(vv)/3){
        int x=vv[i*3]+vv[i*3+1]*3+vv[i*3+2]*9;
        REP(j,5) encode_bit((x>>(4-j))&1);
    }
}

#include "grader.h"
#include "decoder.h"
#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
//order_of_key #of elements less than x
// find_by_order kth element
typedef long long int ll;
#define ld long double
#define pii pair<ll,int>
typedef tree<pii, null_type, less<pii>, rb_tree_tag, tree_order_statistics_node_update> indexed_set;
#define f first
#define s second
#define pb push_back
#define REP(i,n) for(int i=0;i<n;i++)
#define REP1(i,n) for(int i=1;i<=n;i++)
#define FILL(n,x) memset(n,x,sizeof(n))
#define ALL(_a) _a.begin(),_a.end()
#define sz(x) (int)x.size()
#define lowb(x) x&(-x)
#define MNTO(x,y) x=min(x,(__typeof__(x))y)
#define MXTO(x,y) x=max(x,(__typeof__(x))y)
#define SORT_UNIQUE(c) (sort(c.begin(),c.end()), c.resize(distance(c.begin(),unique(c.begin(),c.end()))))
#define GET_POS(c,x) (lower_bound(c.begin(),c.end(),x)-c.begin())
namespace {
int get(){
    int x=0;
    REP(i,10){
        x=x*2+decode_bit();
    }
    return x;
}
vector<int> v[1005];
int par[1005];
int ans[1005];
int df[2005];
void dfs(int u){
    for(int x:v[u]){
        ans[x]=ans[u]+df[x]-1;
        dfs(x);
    }
}
int d[2005];
}
void decode(int nv, int nh) {
    REP1(i,nv-1){
        par[i]=get();
        v[par[i]].pb(i);
    }
    vector<int> dff;
    REP(i,((nv-1)*nh+2)/3){
        int x=0;
        REP(i,5){
            x=x*2+decode_bit();
        }
        REP(j,3){
            dff.pb(x%3);
            x/=3;
        }
    }
    reverse(ALL(dff));
    REP(i,nh){
        ans[0]=0;
        if(i) ans[0]=d[i];
        int it=1;
        REP1(j,nv-1){
            df[j]=dff.back(),dff.pop_back();
        }
        dfs(0);
        REP(j,nv) hops(i,j,ans[j]); 
        if(!i) REP(j,nv) d[j]=ans[j];
    }
}

Compilation message

decoder.cpp: In function 'void decode(int, int)':
decoder.cpp:67:13: warning: unused variable 'it' [-Wunused-variable]
   67 |         int it=1;
      |             ^~

Subtask #1
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 257 ms 11092 KB Output is correct - 69930 call(s) of encode_bit()
2 Correct 2 ms 4692 KB Output is correct - 60 call(s) of encode_bit()
3 Correct 23 ms 6012 KB Output is correct - 62930 call(s) of encode_bit()
4 Correct 3 ms 4624 KB Output is correct - 75 call(s) of encode_bit()
5 Correct 27 ms 6120 KB Output is correct - 62930 call(s) of encode_bit()
6 Correct 31 ms 6420 KB Output is correct - 69930 call(s) of encode_bit()
7 Correct 41 ms 6588 KB Output is correct - 69930 call(s) of encode_bit()
8 Correct 23 ms 6264 KB Output is correct - 67200 call(s) of encode_bit()
9 Correct 26 ms 6340 KB Output is correct - 69930 call(s) of encode_bit()
10 Correct 33 ms 6200 KB Output is correct - 69930 call(s) of encode_bit()
11 Correct 32 ms 6348 KB Output is correct - 69930 call(s) of encode_bit()
12 Correct 23 ms 6288 KB Output is correct - 69930 call(s) of encode_bit()
13 Correct 59 ms 6816 KB Output is correct - 69930 call(s) of encode_bit()
14 Correct 26 ms 6256 KB Output is correct - 69930 call(s) of encode_bit()
15 Correct 26 ms 6348 KB Output is correct - 69930 call(s) of encode_bit()
16 Correct 51 ms 6700 KB Output is correct - 69930 call(s) of encode_bit()
17 Correct 40 ms 6656 KB Output is correct - 69930 call(s) of encode_bit()
18 Correct 49 ms 6988 KB Output is correct - 69930 call(s) of encode_bit()
19 Correct 43 ms 6552 KB Output is correct - 69930 call(s) of encode_bit()
20 Correct 77 ms 7128 KB Output is correct - 69930 call(s) of encode_bit()
21 Correct 63 ms 7364 KB Output is correct - 69930 call(s) of encode_bit()
22 Correct 47 ms 6932 KB Output is correct - 69930 call(s) of encode_bit()
23 Correct 65 ms 7536 KB Output is correct - 69930 call(s) of encode_bit()

Subtask #2
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 257 ms 11092 KB Output is correct - 69930 call(s) of encode_bit()
2 Correct 2 ms 4692 KB Output is correct - 60 call(s) of encode_bit()
3 Correct 23 ms 6012 KB Output is correct - 62930 call(s) of encode_bit()
4 Correct 3 ms 4624 KB Output is correct - 75 call(s) of encode_bit()
5 Correct 27 ms 6120 KB Output is correct - 62930 call(s) of encode_bit()
6 Correct 31 ms 6420 KB Output is correct - 69930 call(s) of encode_bit()
7 Correct 41 ms 6588 KB Output is correct - 69930 call(s) of encode_bit()
8 Correct 23 ms 6264 KB Output is correct - 67200 call(s) of encode_bit()
9 Correct 26 ms 6340 KB Output is correct - 69930 call(s) of encode_bit()
10 Correct 33 ms 6200 KB Output is correct - 69930 call(s) of encode_bit()
11 Correct 32 ms 6348 KB Output is correct - 69930 call(s) of encode_bit()
12 Correct 23 ms 6288 KB Output is correct - 69930 call(s) of encode_bit()
13 Correct 59 ms 6816 KB Output is correct - 69930 call(s) of encode_bit()
14 Correct 26 ms 6256 KB Output is correct - 69930 call(s) of encode_bit()
15 Correct 26 ms 6348 KB Output is correct - 69930 call(s) of encode_bit()
16 Correct 51 ms 6700 KB Output is correct - 69930 call(s) of encode_bit()
17 Correct 40 ms 6656 KB Output is correct - 69930 call(s) of encode_bit()
18 Correct 49 ms 6988 KB Output is correct - 69930 call(s) of encode_bit()
19 Correct 43 ms 6552 KB Output is correct - 69930 call(s) of encode_bit()
20 Correct 77 ms 7128 KB Output is correct - 69930 call(s) of encode_bit()
21 Correct 63 ms 7364 KB Output is correct - 69930 call(s) of encode_bit()
22 Correct 47 ms 6932 KB Output is correct - 69930 call(s) of encode_bit()
23 Correct 65 ms 7536 KB Output is correct - 69930 call(s) of encode_bit()

Subtask #3
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 257 ms 11092 KB Output is correct - 69930 call(s) of encode_bit()
2 Correct 2 ms 4692 KB Output is correct - 60 call(s) of encode_bit()
3 Correct 23 ms 6012 KB Output is correct - 62930 call(s) of encode_bit()
4 Correct 3 ms 4624 KB Output is correct - 75 call(s) of encode_bit()
5 Correct 27 ms 6120 KB Output is correct - 62930 call(s) of encode_bit()
6 Correct 31 ms 6420 KB Output is correct - 69930 call(s) of encode_bit()
7 Correct 41 ms 6588 KB Output is correct - 69930 call(s) of encode_bit()
8 Correct 23 ms 6264 KB Output is correct - 67200 call(s) of encode_bit()
9 Correct 26 ms 6340 KB Output is correct - 69930 call(s) of encode_bit()
10 Correct 33 ms 6200 KB Output is correct - 69930 call(s) of encode_bit()
11 Correct 32 ms 6348 KB Output is correct - 69930 call(s) of encode_bit()
12 Correct 23 ms 6288 KB Output is correct - 69930 call(s) of encode_bit()
13 Correct 59 ms 6816 KB Output is correct - 69930 call(s) of encode_bit()
14 Correct 26 ms 6256 KB Output is correct - 69930 call(s) of encode_bit()
15 Correct 26 ms 6348 KB Output is correct - 69930 call(s) of encode_bit()
16 Correct 51 ms 6700 KB Output is correct - 69930 call(s) of encode_bit()
17 Correct 40 ms 6656 KB Output is correct - 69930 call(s) of encode_bit()
18 Correct 49 ms 6988 KB Output is correct - 69930 call(s) of encode_bit()
19 Correct 43 ms 6552 KB Output is correct - 69930 call(s) of encode_bit()
20 Correct 77 ms 7128 KB Output is correct - 69930 call(s) of encode_bit()
21 Correct 63 ms 7364 KB Output is correct - 69930 call(s) of encode_bit()
22 Correct 47 ms 6932 KB Output is correct - 69930 call(s) of encode_bit()
23 Correct 65 ms 7536 KB Output is correct - 69930 call(s) of encode_bit()

Subtask #4
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 257 ms 11092 KB Output is correct - 69930 call(s) of encode_bit()
2 Correct 2 ms 4692 KB Output is correct - 60 call(s) of encode_bit()
3 Correct 23 ms 6012 KB Output is correct - 62930 call(s) of encode_bit()
4 Correct 3 ms 4624 KB Output is correct - 75 call(s) of encode_bit()
5 Correct 27 ms 6120 KB Output is correct - 62930 call(s) of encode_bit()
6 Correct 31 ms 6420 KB Output is correct - 69930 call(s) of encode_bit()
7 Correct 41 ms 6588 KB Output is correct - 69930 call(s) of encode_bit()
8 Correct 23 ms 6264 KB Output is correct - 67200 call(s) of encode_bit()
9 Correct 26 ms 6340 KB Output is correct - 69930 call(s) of encode_bit()
10 Correct 33 ms 6200 KB Output is correct - 69930 call(s) of encode_bit()
11 Correct 32 ms 6348 KB Output is correct - 69930 call(s) of encode_bit()
12 Correct 23 ms 6288 KB Output is correct - 69930 call(s) of encode_bit()
13 Correct 59 ms 6816 KB Output is correct - 69930 call(s) of encode_bit()
14 Correct 26 ms 6256 KB Output is correct - 69930 call(s) of encode_bit()
15 Correct 26 ms 6348 KB Output is correct - 69930 call(s) of encode_bit()
16 Correct 51 ms 6700 KB Output is correct - 69930 call(s) of encode_bit()
17 Correct 40 ms 6656 KB Output is correct - 69930 call(s) of encode_bit()
18 Correct 49 ms 6988 KB Output is correct - 69930 call(s) of encode_bit()
19 Correct 43 ms 6552 KB Output is correct - 69930 call(s) of encode_bit()
20 Correct 77 ms 7128 KB Output is correct - 69930 call(s) of encode_bit()
21 Correct 63 ms 7364 KB Output is correct - 69930 call(s) of encode_bit()
22 Correct 47 ms 6932 KB Output is correct - 69930 call(s) of encode_bit()
23 Correct 65 ms 7536 KB Output is correct - 69930 call(s) of encode_bit()