| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 990802 |
2024-05-31T11:46:17 Z |
Pacybwoah |
Spy 3 (JOI24_spy3) |
C++17 |
|
21 ms |
4944 KB |
#include "Aoi.h"
#include<iostream>
#include<vector>
#include<algorithm>
#include<utility>
#include<queue>
#include<string>
using namespace std;
typedef long long ll;
namespace {
vector<vector<pair<pair<int, ll>, int>>> graph;
int n, m, q, k;
}
std::string aoi(int N, int M, int Q, int K, std::vector<int> A, std::vector<int> B, std::vector<long long> C, std::vector<int> T, std::vector<int> X) {
n = N, m = M, q = Q, k = K;
graph.resize(n);
for(int i = 0; i < m; i++){
graph[A[i]].emplace_back(make_pair(B[i], C[i]), i);
graph[B[i]].emplace_back(make_pair(A[i], C[i]), i);
}
priority_queue<pair<ll, pair<int, int>>, vector<pair<ll, pair<int, int>>>, greater<pair<ll, pair<int, int>>>> pq;
vector<ll> dist(n, 1e18);
dist[0] = 0;
vector<pair<int, int>> par(n);
pq.emplace(0, make_pair(0, 0));
while(!pq.empty()){
auto [d, tmp] = pq.top();
auto [node, eid] = tmp;
pq.pop();
if(dist[node] < d) continue;
if(node != 0){
par[node] = make_pair((A[eid] == node ? B[eid] : A[eid]), eid);
}
for(auto &[x, eid]: graph[node]){
if(dist[x.first] > d + x.second){
dist[x.first] = d + x.second;
pq.emplace(dist[x.first], make_pair(x.first, eid));
}
}
}
vector<bool> isq(n), isk(m);
for(auto x: T) isq[x] = 1;
for(auto x: X) isk[x] = 1;
vector<int> qtag(n, -1), ktag(m, -1);
int now;
for(int i = q - 1; i >= 0; i--){
now = T[i];
while(now != 0){
auto &[p, eid] = par[now];
if(isk[eid]) ktag[eid] = i;
now = p;
}
}
for(int i = 0; i < q; i++){
now = T[i];
while(now != 0){
auto &[p, eid] = par[now];
if(isk[eid]){
if(ktag[eid] < i){
qtag[i] = eid;
break;
}
}
now = p;
}
}
vector<int> kpos(m);
for(int i = 0; i < k; i++) kpos[X[i]] = i;
string ans;
for(int s = 0; s < k; s += 6){
int e = min(s + 5, k - 1);
ll enc = 0, base = 1;
for(int i = s; i <= e; i++){
enc += base * (ktag[X[i]] + 1);
base *= 17;
}
for(int i = 0; i < 25; i++){
if(enc & (1 << i)){
ans += '1';
}
else ans += '0';
}
}
for(int i = 1; i < q; i++){
int enc;
if(qtag[T[i]] == -1) enc = 0;
else enc = kpos[qtag[T[i]]] + 1;
for(int i = 0; i < 9; i++){
if(enc & (1 << i)){
ans += '1';
}
else ans += '0';
}
}
return ans;
}
// g++ -std=gnu++20 -O2 -o grader joisc24_d1C_grader.cpp joisc24_d1C_Aoi.cpp joisc24_d1C_Bitaro.cpp
#include<iostream>
#include<vector>
#include<algorithm>
#include<utility>
#include<queue>
#include<string>
#include "Bitaro.h"
using namespace std;
typedef long long ll;
namespace {
}
void bitaro(int N, int M, int Q, int K, std::vector<int> A, std::vector<int> B, std::vector<long long> C, std::vector<int> T, std::vector<int> X, std::string s) {
int n = N, m = M, q = Q, k = K;
vector<int> ktag(k), qtag(q);
int snow = 0;
//cout << s << "\n";
for(int st = 0; st < k; st += 6){
int e = min(k, st + 6);
int enc = 0;
for(int i = snow; i < snow + 25; i++){
if(s[i] == '1') enc += (1 << (i - snow));
}
snow += 25;
for(int i = st; i < e; i++){
ktag[i] = enc % 17 - 1;
enc /= 17;
//cout << i << " " << ktag[i] << "\n";
}
}
for(int i = 1; i < q; i++){
for(int j = snow; j < snow + 9; j++){
if(s[j] == '1') qtag[i] += (1 << (j - snow));
}
snow += 9;
qtag[i]--;
//cout << i << " " << qtag[i] << "\n";
}
vector<bool> used(k), isk(m), isq(n);
for(int i = 0; i < k; i++) isk[X[i]] = 1;
for(int i = 0; i < q; i++) isq[T[i]] = 1;
vector<vector<pair<pair<int, ll>, int>>> graph;
auto set_graph = [&](){
vector<vector<pair<pair<int, ll>, int>>>().swap(graph);
graph.resize(n);
for(int i = 0; i < m; i++){
if(!isk[i]){
graph[A[i]].emplace_back(make_pair(B[i], C[i]), i);
graph[B[i]].emplace_back(make_pair(A[i], C[i]), i);
}
}
for(int i = 0; i < k; i++){
if(used[i]){
graph[A[X[i]]].emplace_back(make_pair(B[X[i]], 1), X[i]);
graph[B[X[i]]].emplace_back(make_pair(A[X[i]], 1), X[i]);
}
}
};
vector<int> head(k, -1);
auto dijk = [&](int nowq){
priority_queue<pair<ll, pair<int, int>>, vector<pair<ll, pair<int, int>>>, greater<pair<ll, pair<int, int>>>> pq;
vector<ll> dist(n, 1e18);
dist[0] = 0;
pq.emplace(0, make_pair(0, 0));
vector<pair<int, int>> par(n);
while(!pq.empty()){
auto [d, tmp] = pq.top();
auto [node, eid] = tmp;
pq.pop();
if(dist[node] < d) continue;
if(node != 0){
par[node] = make_pair((A[eid] == node ? B[eid] : A[eid]), eid);
}
for(auto &[x, eid]: graph[node]){
if(dist[x.first] > d + x.second){
dist[x.first] = d + x.second;
pq.emplace(dist[x.first], make_pair(x.first, eid));
}
}
}
vector<int> ans;
int lst = -1;
while(nowq != 0){
auto &[p, eid] = par[nowq];
if(isk[eid]){
if(lst != -1){
head[lst] = eid;
}
lst = eid;
}
nowq = p;
ans.push_back(eid);
}
reverse(ans.begin(), ans.end());
//for(auto x: ans) cout << x << "\n";
//cout << "\n";
answer(ans);
};
for(int i = 0; i < q; i++){
fill(used.begin(), used.end(), 0);
for(int j = 0; j < k; j++){
if(ktag[j] == i) used[j] = 1;
}
if(i != 0){
while(qtag[i] >= 0){
used[qtag[i]] = 1;
qtag[i] = head[qtag[i]];
}
}
set_graph();
dijk(T[i]);
}
}
// g++ -std=gnu++20 -O2 -o grader joisc24_d1C_grader.cpp joisc24_d1C_Aoi.cpp joisc24_d1C_Bitaro.cpp
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
21 ms |
4944 KB |
Output is correct |
| 2 |
Incorrect |
0 ms |
784 KB |
Wrong Answer [4] |
| 3 |
Halted |
0 ms |
0 KB |
- |
