| # | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
|---|---|---|---|---|---|---|---|
| 243280 | 2020-06-30T17:30:39 Z | BamiTorabi | 007 (CEOI14_007) | C++14 | 361 ms | 18040 KB |
//Sasayego! Sasayego! Shinzou wo Sasageyo!
#include <iostream>
#include <iomanip>
#include <algorithm>
#include <cmath>
#include <ctime>
#include <cstring>
#include <vector>
#include <set>
#include <map>
#include <stack>
#include <queue>
#include <deque>
#include <numeric>
#include <bitset>
#include <ctime>
#define debug(x) cerr << #x << " = " << x << endl
#define lid (id << 1)
#define rid (lid ^ 1)
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair <ll, ll> pll;
typedef pair <int, int> pii;
const int maxN = 2e5 + 5;
const ll INF = 1e18;
const ll MOD = 1e9 + 7;
int dist[4][maxN];
queue <int> Q;
vector <int> G[maxN];
void BFS(int ix, int st){
dist[ix][st] = 0;
Q.push(st);
while (!Q.empty()){
int v = Q.front(); Q.pop();
for (int u : G[v])
if (dist[ix][u] > dist[ix][v] + 1){
dist[ix][u] = dist[ix][v] + 1;
Q.push(u);
}
}
return;
}
int main(){
time_t START = clock();
ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
memset(dist, 63, sizeof dist);
int n, m, s, t, a, b;
scanf("%d%d%d%d%d%d", &n, &m, &s, &t, &a, &b);
while (m--){
int u, v; scanf("%d%d", &u, &v);
G[u].push_back(v);
G[v].push_back(u);
}
BFS(0, s);
BFS(1, t);
BFS(2, a);
BFS(3, b);
if (dist[2][t] < dist[2][s] || dist[3][t] < dist[3][s])
return printf("-1\n"), 0;
if (dist[2][t] - dist[2][s] != dist[3][t] - dist[3][s])
return printf("%d\n", min(dist[2][t] - dist[2][s], dist[3][t] - dist[3][s])), 0;
int mns = n, mnt = n;
for (int i = 1; i <= n; i++){
if (dist[0][i] + dist[2][i] == dist[2][s] && dist[0][i] + dist[3][i] == dist[3][s])
mns = min(mns, dist[2][i]);
if (dist[1][i] + dist[2][i] == dist[2][t] && dist[1][i] + dist[3][i] == dist[3][t])
mnt = min(mnt, dist[2][i]);
}
printf("%d\n", dist[2][t] - dist[2][s] - (mnt < mns));
time_t FINISH = clock();
cerr << "Execution time: " << (ld)(FINISH - START) / CLOCKS_PER_SEC * 1000.0 << " milliseconds.\n";
return 0;
}
Compilation message
| # | 결과 | 실행 시간 | 메모리 | Grader output |
|---|---|---|---|---|
| 1 | Correct | 9 ms | 8192 KB | Output is correct |
| 2 | Correct | 10 ms | 8192 KB | Output is correct |
| 3 | Correct | 9 ms | 8192 KB | Output is correct |
| 4 | Correct | 9 ms | 8192 KB | Output is correct |
| 5 | Correct | 9 ms | 8320 KB | Output is correct |
| 6 | Correct | 9 ms | 8192 KB | Output is correct |
| 7 | Correct | 9 ms | 8192 KB | Output is correct |
| 8 | Correct | 9 ms | 8192 KB | Output is correct |
| 9 | Correct | 10 ms | 8192 KB | Output is correct |
| 10 | Correct | 9 ms | 8192 KB | Output is correct |
| 11 | Correct | 9 ms | 8192 KB | Output is correct |
| 12 | Correct | 9 ms | 8192 KB | Output is correct |
| 13 | Correct | 9 ms | 8192 KB | Output is correct |
| 14 | Correct | 9 ms | 8192 KB | Output is correct |
| 15 | Correct | 10 ms | 8192 KB | Output is correct |
| 16 | Correct | 9 ms | 8192 KB | Output is correct |
| 17 | Correct | 11 ms | 8192 KB | Output is correct |
| 18 | Correct | 9 ms | 8192 KB | Output is correct |
| 19 | Correct | 9 ms | 8192 KB | Output is correct |
| 20 | Correct | 9 ms | 8192 KB | Output is correct |
| 21 | Correct | 9 ms | 8192 KB | Output is correct |
| 22 | Correct | 10 ms | 8192 KB | Output is correct |
| 23 | Correct | 10 ms | 8192 KB | Output is correct |
| 24 | Correct | 10 ms | 8192 KB | Output is correct |
| # | 결과 | 실행 시간 | 메모리 | Grader output |
|---|---|---|---|---|
| 1 | Correct | 36 ms | 9472 KB | Output is correct |
| 2 | Correct | 47 ms | 9984 KB | Output is correct |
| 3 | Correct | 36 ms | 9472 KB | Output is correct |
| 4 | Correct | 64 ms | 10232 KB | Output is correct |
| 5 | Correct | 34 ms | 9336 KB | Output is correct |
| 6 | Correct | 35 ms | 9600 KB | Output is correct |
| 7 | Correct | 39 ms | 9720 KB | Output is correct |
| 8 | Correct | 43 ms | 9720 KB | Output is correct |
| 9 | Correct | 55 ms | 10232 KB | Output is correct |
| 10 | Correct | 192 ms | 14328 KB | Output is correct |
| 11 | Correct | 74 ms | 11000 KB | Output is correct |
| 12 | Correct | 105 ms | 11772 KB | Output is correct |
| 13 | Correct | 124 ms | 11260 KB | Output is correct |
| 14 | Correct | 71 ms | 10744 KB | Output is correct |
| 15 | Correct | 94 ms | 11768 KB | Output is correct |
| 16 | Correct | 108 ms | 12024 KB | Output is correct |
| 17 | Correct | 91 ms | 11640 KB | Output is correct |
| 18 | Correct | 96 ms | 11592 KB | Output is correct |
| 19 | Correct | 151 ms | 12792 KB | Output is correct |
| 20 | Correct | 246 ms | 15736 KB | Output is correct |
| 21 | Correct | 141 ms | 13180 KB | Output is correct |
| 22 | Correct | 118 ms | 12536 KB | Output is correct |
| 23 | Correct | 135 ms | 13176 KB | Output is correct |
| 24 | Correct | 129 ms | 13048 KB | Output is correct |
| 25 | Correct | 131 ms | 12824 KB | Output is correct |
| 26 | Correct | 129 ms | 12616 KB | Output is correct |
| 27 | Correct | 145 ms | 13176 KB | Output is correct |
| 28 | Correct | 160 ms | 13176 KB | Output is correct |
| 29 | Correct | 180 ms | 14204 KB | Output is correct |
| 30 | Correct | 262 ms | 16120 KB | Output is correct |
| 31 | Correct | 163 ms | 13944 KB | Output is correct |
| 32 | Correct | 154 ms | 13176 KB | Output is correct |
| 33 | Correct | 160 ms | 13280 KB | Output is correct |
| 34 | Correct | 186 ms | 13688 KB | Output is correct |
| 35 | Correct | 143 ms | 13432 KB | Output is correct |
| 36 | Correct | 151 ms | 13688 KB | Output is correct |
| 37 | Correct | 199 ms | 14328 KB | Output is correct |
| 38 | Correct | 195 ms | 14072 KB | Output is correct |
| 39 | Correct | 225 ms | 14072 KB | Output is correct |
| 40 | Correct | 262 ms | 15852 KB | Output is correct |
| 41 | Correct | 361 ms | 18040 KB | Output is correct |