oj.uz

Submission #803086

# Submission time Handle Problem Language Result Execution time Memory
803086 2023-08-02T21:27:42 Z Antekb Saveit (IOI10_saveit) C++17
50 / 100
 1805 ms 12560 KB 
#include "grader.h"
#include "encoder.h"
#include<bits/stdc++.h>
#define st first
#define nd second
#define pb push_back
#define pp pop_back;
using namespace std;
using vi = vector<int>;
using pii = pair<int, int>;
void nadaj(int x, int b){
	for(int i=0; i<b; i++){
		encode_bit(!!(x&(1<<i)));
	}
}
void encode(int n, int h, int m, int *v1, int *v2){
	vi E[n];
	int czy[n][h], dist[n][h];
	for(int i=0; i<n; i++){
		for(int j=0; j<h; j++){
			czy[i][j]=(i==j);
			dist[i][j]=1e9*(i!=j);
		}
	}
	vi edg;
	for(int i=0; i<m; i++){
		E[v1[i]].pb(edg.size());
		edg.pb(v2[i]);
		E[v2[i]].pb(edg.size());
		edg.pb(v1[i]);
	}
	for(int s=0; s<h; s++){
		vi V;
		V.pb(s);
		for(int i=0; i<V.size(); i++){
			int v=V[i];
			for(int e:E[v]){
				if(dist[edg[e]][s]==1e9){
					dist[edg[e]][s]=dist[v][s]+1;
					V.pb(edg[e]);
				}
			}
		}
	}
	vi E2[n];
	for(int v=0; v<n; v++){
		int ile=0;
		for(int u=0; u<n; u++){
			if(u==v)continue;
			bool b=1;
			for(int i=0; i<h; i++){
				if(dist[u][i]+1<dist[v][i] || dist[v][i]+1<dist[u][i]){
					b=0;
				}
			}
			if(!b)continue;
			b=0;
			for(int i=0; i<h; i++){
				if(!czy[u][i] && dist[u][i]==dist[v][i]+1){
					b=1;
				}
				if(!czy[v][i] && dist[v][i]==dist[u][i]+1){
					b=1;
				}
			}
			if(b)ile++;
		}
		if(ile>=150){
			for(int u=0; u<n; u++){
				if(u==v)continue;
				bool b=1;
				for(int i=0; i<h; i++){
					if(dist[u][i]+1<dist[v][i] || dist[v][i]+1<dist[u][i]){
						b=0;
					}
				}
				if(!b)continue;
				for(int i=0; i<h; i++){
					if(!czy[u][i] && dist[u][i]==dist[v][i]+1){
						czy[u][i]=1;
						E2[v].pb(u);
					}
					if(!czy[v][i] && dist[v][i]==dist[u][i]+1){
						czy[v][i]=1;
						E2[v].pb(u);
					}
				}
			}
		}
	}
	int sum=0;
	for(int t=h; t>0; t--){
		for(int u=0; u<n; u++){
			for(int v=0; v<u; v++){
			bool b=1;
			for(int i=0; i<h; i++){
				if(dist[u][i]+1<dist[v][i] || dist[v][i]+1<dist[u][i]){
					b=0;
				}
			}
			if(!b)continue;
			int ile=0;
			for(int i=0; i<h; i++){
				if(!czy[u][i] && dist[u][i]==dist[v][i]+1){
					ile++;
				}
				if(!czy[v][i] && dist[v][i]==dist[u][i]+1){
					ile++;
				}
			}
			if(ile==t){
				//cerr<<t<<"\n";
				sum+=t;
				E2[v].pb(u);
				for(int i=0; i<h; i++){
					if(!czy[u][i] && dist[u][i]==dist[v][i]+1){
						czy[u][i]=1;
					}
					if(!czy[v][i] && dist[v][i]==dist[u][i]+1){
						czy[v][i]=1;
					}
				}
			}
			}
		}
	}
	cerr<<sum<<"\n";
	for(int i=0; i<n; i++){
		sort(E2[i].begin(), E2[i].end());
		nadaj(min((int)E2[i].size(), 100), 7);
		if(E2[i].size()>=100){
			vi V(n);
			for(int u:E2[i]){
				V[u]=1;
			}
			for(int j:V){
				nadaj(j, 1);
			}
		}
		else{
			for(int u:E2[i]){
				nadaj(u, 10);
			}
		}
	}
	return;
}
#include "grader.h"
#include "decoder.h"
#include<bits/stdc++.h>
#define st first
#define nd second
#define pb push_back
#define pp pop_back;
using namespace std;
using vi = vector<int>;
using pii = pair<int, int>;
int czytaj(int b){
	int x=0;
	for(int i=0; i<b; i++){
		x+=(int(decode_bit())<<i);
	}
	return x;
}
void decode(int n, int h) {
	vi E[n];
	for(int i=0;i<n; i++){
		int k=czytaj(7);
		//cerr<<k<<"\n";
		if(k==100){
			for(int j=0; j<n; j++){
				if(czytaj(1)){
					E[i].pb(j);
					E[j].pb(i);
				}
			}
		}
		else{
			while(k--){
				int j=czytaj(10);
				E[i].pb(j);
				E[j].pb(i);
			}
		}
	}
	for(int s=0; s<h; s++){
		vi V;
		V.pb(s);
		vi dist(n, 1e9);
		dist[s]=0;
		for(int i=0; i<V.size(); i++){
			int v=V[i];
			for(int u:E[v]){
				if(dist[u]==1e9){
					dist[u]=dist[v]+1;
					V.pb(u);
				}
			}
		}
		for(int i=0; i<n; i++){
			hops(s, i, dist[i]);
		}
	}
}

Compilation message

encoder.cpp: In function 'void encode(int, int, int, int*, int*)':
encoder.cpp:35:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |   for(int i=0; i<V.size(); i++){
      |                ~^~~~~~~~~

decoder.cpp: In function 'void decode(int, int)':
decoder.cpp:44:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |   for(int i=0; i<V.size(); i++){
      |                ~^~~~~~~~~

Subtask #1
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1545 ms 12560 KB Output is correct - 43000 call(s) of encode_bit()
2 Correct 2 ms 4604 KB Output is correct - 105 call(s) of encode_bit()
3 Correct 745 ms 5576 KB Output is correct - 43670 call(s) of encode_bit()
4 Correct 2 ms 4604 KB Output is correct - 125 call(s) of encode_bit()
5 Correct 970 ms 6180 KB Output is partially correct - 76520 call(s) of encode_bit()
6 Correct 1119 ms 6220 KB Output is partially correct - 86450 call(s) of encode_bit()
7 Correct 1614 ms 6744 KB Output is correct - 69230 call(s) of encode_bit()
8 Correct 1147 ms 5260 KB Output is correct - 22777 call(s) of encode_bit()
9 Correct 760 ms 5212 KB Output is correct - 22850 call(s) of encode_bit()
10 Correct 817 ms 5224 KB Output is correct - 22610 call(s) of encode_bit()
11 Correct 881 ms 5728 KB Output is correct - 40840 call(s) of encode_bit()
12 Correct 896 ms 5264 KB Output is correct - 16990 call(s) of encode_bit()
13 Correct 1638 ms 6652 KB Output is correct - 50140 call(s) of encode_bit()
14 Correct 889 ms 5232 KB Output is correct - 25910 call(s) of encode_bit()
15 Correct 904 ms 5416 KB Output is correct - 27040 call(s) of encode_bit()
16 Correct 993 ms 6328 KB Output is correct - 34110 call(s) of encode_bit()
17 Correct 1016 ms 6244 KB Output is correct - 33900 call(s) of encode_bit()
18 Correct 1360 ms 6608 KB Output is correct - 50430 call(s) of encode_bit()
19 Correct 1279 ms 6144 KB Output is correct - 49780 call(s) of encode_bit()
20 Correct 1688 ms 7136 KB Output is correct - 51980 call(s) of encode_bit()
21 Correct 1292 ms 7372 KB Output is correct - 52360 call(s) of encode_bit()
22 Correct 1690 ms 6792 KB Output is correct - 59320 call(s) of encode_bit()
23 Correct 1805 ms 7956 KB Output is correct - 61420 call(s) of encode_bit()

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1545 ms 12560 KB Output is correct - 43000 call(s) of encode_bit()
2 Correct 2 ms 4604 KB Output is correct - 105 call(s) of encode_bit()
3 Correct 745 ms 5576 KB Output is correct - 43670 call(s) of encode_bit()
4 Correct 2 ms 4604 KB Output is correct - 125 call(s) of encode_bit()
5 Correct 970 ms 6180 KB Output is partially correct - 76520 call(s) of encode_bit()
6 Correct 1119 ms 6220 KB Output is partially correct - 86450 call(s) of encode_bit()
7 Correct 1614 ms 6744 KB Output is correct - 69230 call(s) of encode_bit()
8 Correct 1147 ms 5260 KB Output is correct - 22777 call(s) of encode_bit()
9 Correct 760 ms 5212 KB Output is correct - 22850 call(s) of encode_bit()
10 Correct 817 ms 5224 KB Output is correct - 22610 call(s) of encode_bit()
11 Correct 881 ms 5728 KB Output is correct - 40840 call(s) of encode_bit()
12 Correct 896 ms 5264 KB Output is correct - 16990 call(s) of encode_bit()
13 Correct 1638 ms 6652 KB Output is correct - 50140 call(s) of encode_bit()
14 Correct 889 ms 5232 KB Output is correct - 25910 call(s) of encode_bit()
15 Correct 904 ms 5416 KB Output is correct - 27040 call(s) of encode_bit()
16 Correct 993 ms 6328 KB Output is correct - 34110 call(s) of encode_bit()
17 Correct 1016 ms 6244 KB Output is correct - 33900 call(s) of encode_bit()
18 Correct 1360 ms 6608 KB Output is correct - 50430 call(s) of encode_bit()
19 Correct 1279 ms 6144 KB Output is correct - 49780 call(s) of encode_bit()
20 Correct 1688 ms 7136 KB Output is correct - 51980 call(s) of encode_bit()
21 Correct 1292 ms 7372 KB Output is correct - 52360 call(s) of encode_bit()
22 Correct 1690 ms 6792 KB Output is correct - 59320 call(s) of encode_bit()
23 Correct 1805 ms 7956 KB Output is correct - 61420 call(s) of encode_bit()

Subtask #3
0.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1545 ms 12560 KB Output is correct - 43000 call(s) of encode_bit()
2 Correct 2 ms 4604 KB Output is correct - 105 call(s) of encode_bit()
3 Correct 745 ms 5576 KB Output is correct - 43670 call(s) of encode_bit()
4 Correct 2 ms 4604 KB Output is correct - 125 call(s) of encode_bit()
5 Correct 970 ms 6180 KB Output is partially correct - 76520 call(s) of encode_bit()
6 Correct 1119 ms 6220 KB Output is partially correct - 86450 call(s) of encode_bit()
7 Correct 1614 ms 6744 KB Output is correct - 69230 call(s) of encode_bit()
8 Correct 1147 ms 5260 KB Output is correct - 22777 call(s) of encode_bit()
9 Correct 760 ms 5212 KB Output is correct - 22850 call(s) of encode_bit()
10 Correct 817 ms 5224 KB Output is correct - 22610 call(s) of encode_bit()
11 Correct 881 ms 5728 KB Output is correct - 40840 call(s) of encode_bit()
12 Correct 896 ms 5264 KB Output is correct - 16990 call(s) of encode_bit()
13 Correct 1638 ms 6652 KB Output is correct - 50140 call(s) of encode_bit()
14 Correct 889 ms 5232 KB Output is correct - 25910 call(s) of encode_bit()
15 Correct 904 ms 5416 KB Output is correct - 27040 call(s) of encode_bit()
16 Correct 993 ms 6328 KB Output is correct - 34110 call(s) of encode_bit()
17 Correct 1016 ms 6244 KB Output is correct - 33900 call(s) of encode_bit()
18 Correct 1360 ms 6608 KB Output is correct - 50430 call(s) of encode_bit()
19 Correct 1279 ms 6144 KB Output is correct - 49780 call(s) of encode_bit()
20 Correct 1688 ms 7136 KB Output is correct - 51980 call(s) of encode_bit()
21 Correct 1292 ms 7372 KB Output is correct - 52360 call(s) of encode_bit()
22 Correct 1690 ms 6792 KB Output is correct - 59320 call(s) of encode_bit()
23 Correct 1805 ms 7956 KB Output is correct - 61420 call(s) of encode_bit()

Subtask #4
0.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1545 ms 12560 KB Output is correct - 43000 call(s) of encode_bit()
2 Correct 2 ms 4604 KB Output is correct - 105 call(s) of encode_bit()
3 Correct 745 ms 5576 KB Output is correct - 43670 call(s) of encode_bit()
4 Correct 2 ms 4604 KB Output is correct - 125 call(s) of encode_bit()
5 Correct 970 ms 6180 KB Output is partially correct - 76520 call(s) of encode_bit()
6 Correct 1119 ms 6220 KB Output is partially correct - 86450 call(s) of encode_bit()
7 Correct 1614 ms 6744 KB Output is correct - 69230 call(s) of encode_bit()
8 Correct 1147 ms 5260 KB Output is correct - 22777 call(s) of encode_bit()
9 Correct 760 ms 5212 KB Output is correct - 22850 call(s) of encode_bit()
10 Correct 817 ms 5224 KB Output is correct - 22610 call(s) of encode_bit()
11 Correct 881 ms 5728 KB Output is correct - 40840 call(s) of encode_bit()
12 Correct 896 ms 5264 KB Output is correct - 16990 call(s) of encode_bit()
13 Correct 1638 ms 6652 KB Output is correct - 50140 call(s) of encode_bit()
14 Correct 889 ms 5232 KB Output is correct - 25910 call(s) of encode_bit()
15 Correct 904 ms 5416 KB Output is correct - 27040 call(s) of encode_bit()
16 Correct 993 ms 6328 KB Output is correct - 34110 call(s) of encode_bit()
17 Correct 1016 ms 6244 KB Output is correct - 33900 call(s) of encode_bit()
18 Correct 1360 ms 6608 KB Output is correct - 50430 call(s) of encode_bit()
19 Correct 1279 ms 6144 KB Output is correct - 49780 call(s) of encode_bit()
20 Correct 1688 ms 7136 KB Output is correct - 51980 call(s) of encode_bit()
21 Correct 1292 ms 7372 KB Output is correct - 52360 call(s) of encode_bit()
22 Correct 1690 ms 6792 KB Output is correct - 59320 call(s) of encode_bit()
23 Correct 1805 ms 7956 KB Output is correct - 61420 call(s) of encode_bit()