| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 830120 |
2023-08-18T19:05:31 Z |
Antekb |
Saveit (IOI10_saveit) |
C++17 |
|
1803 ms |
12864 KB |
#include "grader.h"
#include "encoder.h"
#include<bits/stdc++.h>
#define st first
#define nd second
#define pb push_back
#define eb emplace_back
#define pp pop_back
#define all(x) (x).begin(), (x).end()
using namespace std;
using vi = vector<int>;
using pii = pair<int, int>;
using vii = vector<pii>;
void nadaj(vi &V, int x, int b){
for(int i=0; i<b; i++){
V.pb(!!(x&(1<<i)));
}
}
void encode2(vi &ans, 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];
bool spec[n];
queue<int> spe;
for(int v=0; v<n; v++){
int ile=0;
vii V2;
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){
V2.eb(u, i);
b=1;
}
if(!czy[v][i] && dist[v][i]==dist[u][i]+1){
V2.eb(v, i);
b=1;
}
}
if(b)ile++;
}
sort(all(V2));
V2.resize(unique(all(V2))-V2.begin());
if(ile>=111){
spe.push(v);
spec[v]=1;
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;
if(2*(u-v)<=n)E2[v].pb(u);
else E2[u].pb(v);
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;
}
}
}
}
}
}
for(int i=0; i<n; i++){
if(!spec[i]){
for(int u:E2[i]){
assert(((u-i+n)%n)<512);
}
}
}
while(spe.size()){
int v=spe.front();
spe.pop();
if(E2[v].size()>=111)continue;
vi V;
spec[v]=0;
for(int u:E2[v]){
if(2*((u-v+n)%n)<=n)V.pb(u);
else{
E2[u].pb(v);
if(E2[u].size()==111){
spec[u]=1;
spe.push(u);
}
if(!spec[u]){
for(int i:E2[u]){
assert(((i-u+n)%n)<512);
}
}
}
}
E2[v]=V;
for(int u:E2[v]){
assert(((u-v+n)%n)<512);
}
}
for(int i=0; i<n; i++){
if(!spec[i]){
for(int u:E2[i]){
//assert(((u-i+n)%n)<512);
}
}
}
cerr<<sum<<"\n";
for(int i=0; i<n; i++){
sort(E2[i].begin(), E2[i].end());
if(spec[i]){
//assert(E2[i].size()>=111);
nadaj(ans, 111, 7);
}
else{
//assert(E2[i].size()<100);
nadaj(ans, E2[i].size(), 7);
}
//assert(spec[i]==(E2[i].size()>=111));
if(spec[i]){
vi V(n);
for(int u:E2[i]){
V[u]=1;
}
for(int j:V){
nadaj(ans, j, 1);
}
}
else{
for(int u:E2[i]){
//assert((u-i+n)%n<512);
nadaj(ans, (u-i+n)%n, 9);
}
}
}
return;
}
void encode3(vi &ans, 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];
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;
if(2*(u-v)<=n)E2[v].pb(u);
else E2[u].pb(v);
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(ans, min((int)E2[i].size(), 111), 7);
if(E2[i].size()>=111){
vi V(n);
for(int u:E2[i]){
V[u]=1;
}
for(int j:V){
nadaj(ans, j, 1);
}
}
else{
for(int u:E2[i]){
nadaj(ans, (u-i+n)%n, 9);
}
}
}
return;
}
void encode(int n, int h, int m, int *v1, int *v2){
vi V, V2;
encode2(V, n, h, m, v1, v2);
//encode3(V2, n, h, m, v1, v2);
//if(V2.size()<V.size())V=V2;
for(int i:V){
encode_bit(i);
}
}
#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>=111){
for(int j=0; j<n; j++){
if(czytaj(1)){
E[i].pb(j);
E[j].pb(i);
}
}
}
else{
while(k--){
int j=czytaj(9);
E[i].pb((j+i)%n);
E[(j+i)%n].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 encode2(vi&, int, int, int, int*, int*)':
encoder.cpp:39:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
39 | for(int i=0; i<V.size(); i++){
| ~^~~~~~~~~
encoder.cpp:176:12: warning: unused variable 'u' [-Wunused-variable]
176 | for(int u:E2[i]){
| ^
encoder.cpp: In function 'void encode3(vi&, int, int, int, int*, int*)':
encoder.cpp:230:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
230 | 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++){
| ~^~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1592 ms |
12864 KB |
Output is correct - 43000 call(s) of encode_bit() |
| 2 |
Correct |
1 ms |
4612 KB |
Output is correct - 73 call(s) of encode_bit() |
| 3 |
Correct |
816 ms |
5744 KB |
Output is correct - 40689 call(s) of encode_bit() |
| 4 |
Correct |
2 ms |
4612 KB |
Output is correct - 73 call(s) of encode_bit() |
| 5 |
Correct |
971 ms |
6604 KB |
Output is partially correct - 82269 call(s) of encode_bit() |
| 6 |
Correct |
1159 ms |
7028 KB |
Output is partially correct - 88569 call(s) of encode_bit() |
| 7 |
Correct |
1678 ms |
7276 KB |
Output is correct - 67397 call(s) of encode_bit() |
| 8 |
Correct |
1299 ms |
5528 KB |
Output is correct - 21172 call(s) of encode_bit() |
| 9 |
Correct |
878 ms |
5484 KB |
Output is correct - 21265 call(s) of encode_bit() |
| 10 |
Correct |
903 ms |
5488 KB |
Output is correct - 21049 call(s) of encode_bit() |
| 11 |
Correct |
990 ms |
6020 KB |
Output is correct - 37973 call(s) of encode_bit() |
| 12 |
Correct |
1016 ms |
5272 KB |
Output is correct - 15991 call(s) of encode_bit() |
| 13 |
Correct |
1722 ms |
6996 KB |
Output is correct - 48208 call(s) of encode_bit() |
| 14 |
Correct |
1071 ms |
5432 KB |
Output is correct - 24019 call(s) of encode_bit() |
| 15 |
Correct |
1065 ms |
5720 KB |
Output is correct - 25045 call(s) of encode_bit() |
| 16 |
Correct |
1140 ms |
6540 KB |
Output is correct - 33199 call(s) of encode_bit() |
| 17 |
Correct |
1118 ms |
6376 KB |
Output is correct - 32992 call(s) of encode_bit() |
| 18 |
Correct |
1251 ms |
7048 KB |
Output is correct - 47289 call(s) of encode_bit() |
| 19 |
Correct |
1413 ms |
6548 KB |
Output is correct - 46802 call(s) of encode_bit() |
| 20 |
Correct |
1230 ms |
7464 KB |
Output is correct - 50338 call(s) of encode_bit() |
| 21 |
Correct |
1325 ms |
7708 KB |
Output is correct - 52427 call(s) of encode_bit() |
| 22 |
Correct |
1803 ms |
7076 KB |
Output is correct - 56170 call(s) of encode_bit() |
| 23 |
Correct |
1323 ms |
7948 KB |
Output is correct - 60188 call(s) of encode_bit() |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1592 ms |
12864 KB |
Output is correct - 43000 call(s) of encode_bit() |
| 2 |
Correct |
1 ms |
4612 KB |
Output is correct - 73 call(s) of encode_bit() |
| 3 |
Correct |
816 ms |
5744 KB |
Output is correct - 40689 call(s) of encode_bit() |
| 4 |
Correct |
2 ms |
4612 KB |
Output is correct - 73 call(s) of encode_bit() |
| 5 |
Correct |
971 ms |
6604 KB |
Output is partially correct - 82269 call(s) of encode_bit() |
| 6 |
Correct |
1159 ms |
7028 KB |
Output is partially correct - 88569 call(s) of encode_bit() |
| 7 |
Correct |
1678 ms |
7276 KB |
Output is correct - 67397 call(s) of encode_bit() |
| 8 |
Correct |
1299 ms |
5528 KB |
Output is correct - 21172 call(s) of encode_bit() |
| 9 |
Correct |
878 ms |
5484 KB |
Output is correct - 21265 call(s) of encode_bit() |
| 10 |
Correct |
903 ms |
5488 KB |
Output is correct - 21049 call(s) of encode_bit() |
| 11 |
Correct |
990 ms |
6020 KB |
Output is correct - 37973 call(s) of encode_bit() |
| 12 |
Correct |
1016 ms |
5272 KB |
Output is correct - 15991 call(s) of encode_bit() |
| 13 |
Correct |
1722 ms |
6996 KB |
Output is correct - 48208 call(s) of encode_bit() |
| 14 |
Correct |
1071 ms |
5432 KB |
Output is correct - 24019 call(s) of encode_bit() |
| 15 |
Correct |
1065 ms |
5720 KB |
Output is correct - 25045 call(s) of encode_bit() |
| 16 |
Correct |
1140 ms |
6540 KB |
Output is correct - 33199 call(s) of encode_bit() |
| 17 |
Correct |
1118 ms |
6376 KB |
Output is correct - 32992 call(s) of encode_bit() |
| 18 |
Correct |
1251 ms |
7048 KB |
Output is correct - 47289 call(s) of encode_bit() |
| 19 |
Correct |
1413 ms |
6548 KB |
Output is correct - 46802 call(s) of encode_bit() |
| 20 |
Correct |
1230 ms |
7464 KB |
Output is correct - 50338 call(s) of encode_bit() |
| 21 |
Correct |
1325 ms |
7708 KB |
Output is correct - 52427 call(s) of encode_bit() |
| 22 |
Correct |
1803 ms |
7076 KB |
Output is correct - 56170 call(s) of encode_bit() |
| 23 |
Correct |
1323 ms |
7948 KB |
Output is correct - 60188 call(s) of encode_bit() |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1592 ms |
12864 KB |
Output is correct - 43000 call(s) of encode_bit() |
| 2 |
Correct |
1 ms |
4612 KB |
Output is correct - 73 call(s) of encode_bit() |
| 3 |
Correct |
816 ms |
5744 KB |
Output is correct - 40689 call(s) of encode_bit() |
| 4 |
Correct |
2 ms |
4612 KB |
Output is correct - 73 call(s) of encode_bit() |
| 5 |
Correct |
971 ms |
6604 KB |
Output is partially correct - 82269 call(s) of encode_bit() |
| 6 |
Correct |
1159 ms |
7028 KB |
Output is partially correct - 88569 call(s) of encode_bit() |
| 7 |
Correct |
1678 ms |
7276 KB |
Output is correct - 67397 call(s) of encode_bit() |
| 8 |
Correct |
1299 ms |
5528 KB |
Output is correct - 21172 call(s) of encode_bit() |
| 9 |
Correct |
878 ms |
5484 KB |
Output is correct - 21265 call(s) of encode_bit() |
| 10 |
Correct |
903 ms |
5488 KB |
Output is correct - 21049 call(s) of encode_bit() |
| 11 |
Correct |
990 ms |
6020 KB |
Output is correct - 37973 call(s) of encode_bit() |
| 12 |
Correct |
1016 ms |
5272 KB |
Output is correct - 15991 call(s) of encode_bit() |
| 13 |
Correct |
1722 ms |
6996 KB |
Output is correct - 48208 call(s) of encode_bit() |
| 14 |
Correct |
1071 ms |
5432 KB |
Output is correct - 24019 call(s) of encode_bit() |
| 15 |
Correct |
1065 ms |
5720 KB |
Output is correct - 25045 call(s) of encode_bit() |
| 16 |
Correct |
1140 ms |
6540 KB |
Output is correct - 33199 call(s) of encode_bit() |
| 17 |
Correct |
1118 ms |
6376 KB |
Output is correct - 32992 call(s) of encode_bit() |
| 18 |
Correct |
1251 ms |
7048 KB |
Output is correct - 47289 call(s) of encode_bit() |
| 19 |
Correct |
1413 ms |
6548 KB |
Output is correct - 46802 call(s) of encode_bit() |
| 20 |
Correct |
1230 ms |
7464 KB |
Output is correct - 50338 call(s) of encode_bit() |
| 21 |
Correct |
1325 ms |
7708 KB |
Output is correct - 52427 call(s) of encode_bit() |
| 22 |
Correct |
1803 ms |
7076 KB |
Output is correct - 56170 call(s) of encode_bit() |
| 23 |
Correct |
1323 ms |
7948 KB |
Output is correct - 60188 call(s) of encode_bit() |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1592 ms |
12864 KB |
Output is correct - 43000 call(s) of encode_bit() |
| 2 |
Correct |
1 ms |
4612 KB |
Output is correct - 73 call(s) of encode_bit() |
| 3 |
Correct |
816 ms |
5744 KB |
Output is correct - 40689 call(s) of encode_bit() |
| 4 |
Correct |
2 ms |
4612 KB |
Output is correct - 73 call(s) of encode_bit() |
| 5 |
Correct |
971 ms |
6604 KB |
Output is partially correct - 82269 call(s) of encode_bit() |
| 6 |
Correct |
1159 ms |
7028 KB |
Output is partially correct - 88569 call(s) of encode_bit() |
| 7 |
Correct |
1678 ms |
7276 KB |
Output is correct - 67397 call(s) of encode_bit() |
| 8 |
Correct |
1299 ms |
5528 KB |
Output is correct - 21172 call(s) of encode_bit() |
| 9 |
Correct |
878 ms |
5484 KB |
Output is correct - 21265 call(s) of encode_bit() |
| 10 |
Correct |
903 ms |
5488 KB |
Output is correct - 21049 call(s) of encode_bit() |
| 11 |
Correct |
990 ms |
6020 KB |
Output is correct - 37973 call(s) of encode_bit() |
| 12 |
Correct |
1016 ms |
5272 KB |
Output is correct - 15991 call(s) of encode_bit() |
| 13 |
Correct |
1722 ms |
6996 KB |
Output is correct - 48208 call(s) of encode_bit() |
| 14 |
Correct |
1071 ms |
5432 KB |
Output is correct - 24019 call(s) of encode_bit() |
| 15 |
Correct |
1065 ms |
5720 KB |
Output is correct - 25045 call(s) of encode_bit() |
| 16 |
Correct |
1140 ms |
6540 KB |
Output is correct - 33199 call(s) of encode_bit() |
| 17 |
Correct |
1118 ms |
6376 KB |
Output is correct - 32992 call(s) of encode_bit() |
| 18 |
Correct |
1251 ms |
7048 KB |
Output is correct - 47289 call(s) of encode_bit() |
| 19 |
Correct |
1413 ms |
6548 KB |
Output is correct - 46802 call(s) of encode_bit() |
| 20 |
Correct |
1230 ms |
7464 KB |
Output is correct - 50338 call(s) of encode_bit() |
| 21 |
Correct |
1325 ms |
7708 KB |
Output is correct - 52427 call(s) of encode_bit() |
| 22 |
Correct |
1803 ms |
7076 KB |
Output is correct - 56170 call(s) of encode_bit() |
| 23 |
Correct |
1323 ms |
7948 KB |
Output is correct - 60188 call(s) of encode_bit() |
