Submission #1710514
Source Code Expand
#include "bits/stdc++.h"
using namespace std;
#define FOR(i,j,k) for(int (i)=(j);(i)<(int)(k);++(i))
#define rep(i,j) FOR(i,0,j)
#define each(x,y) for(auto &(x):(y))
#define mp make_pair
#define mt make_tuple
#define all(x) (x).begin(),(x).end()
#define debug(x) cout<<#x<<": "<<(x)<<endl
#define smax(x,y) (x)=max((x),(y))
#define smin(x,y) (x)=min((x),(y))
#define MEM(x,y) memset((x),(y),sizeof (x))
#define sz(x) (int)(x).size()
#define pb push_back
typedef long long ll;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<ll> vll;
int main(){
ios::sync_with_stdio(false);
cin.tie(0);
int N, Q;
cin >> N >> Q;
vi cup(N), mag(N);
cup[0] = 1;
int ball = 0;
for (int i = 0; i <= Q; ++i) {
for (int j = max(0, ball - 1); j < min(N, ball + 2); ++j) {
mag[j] |= 1;
}
if (i == Q)break;
int a, b;
cin >> a >> b;
--a, --b;
if (cup[a] || cup[b]) {
ball = cup[a] ? b : a;
}
swap(cup[a], cup[b]);
swap(mag[a], mag[b]);
}
int ans = accumulate(all(mag), 0);
cout << ans << endl;
}
Submission Info
Submission Time |
|
Task |
G - Magician |
User |
paruki |
Language |
C++14 (GCC 5.4.1) |
Score |
100 |
Code Size |
1180 Byte |
Status |
AC |
Exec Time |
19 ms |
Memory |
1024 KB |
Judge Result
Set Name |
Sample |
All |
Score / Max Score |
0 / 0 |
100 / 100 |
Status |
|
|
Set Name |
Test Cases |
Sample |
sample_01.txt, sample_02.txt |
All |
sample_01.txt, sample_02.txt, sample_01.txt, sample_02.txt, subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask1_09.txt, subtask1_10.txt, subtask1_11.txt, subtask1_12.txt, subtask1_13.txt, subtask1_14.txt, subtask1_15.txt, subtask1_16.txt, subtask1_17.txt, subtask1_18.txt, subtask1_19.txt |
Case Name |
Status |
Exec Time |
Memory |
sample_01.txt |
AC |
1 ms |
256 KB |
sample_02.txt |
AC |
1 ms |
256 KB |
subtask1_01.txt |
AC |
18 ms |
1024 KB |
subtask1_02.txt |
AC |
18 ms |
1024 KB |
subtask1_03.txt |
AC |
19 ms |
1024 KB |
subtask1_04.txt |
AC |
18 ms |
1024 KB |
subtask1_05.txt |
AC |
18 ms |
1024 KB |
subtask1_06.txt |
AC |
18 ms |
1024 KB |
subtask1_07.txt |
AC |
18 ms |
1024 KB |
subtask1_08.txt |
AC |
18 ms |
1024 KB |
subtask1_09.txt |
AC |
18 ms |
1024 KB |
subtask1_10.txt |
AC |
18 ms |
1024 KB |
subtask1_11.txt |
AC |
18 ms |
1024 KB |
subtask1_12.txt |
AC |
18 ms |
1024 KB |
subtask1_13.txt |
AC |
18 ms |
1024 KB |
subtask1_14.txt |
AC |
18 ms |
1024 KB |
subtask1_15.txt |
AC |
18 ms |
1024 KB |
subtask1_16.txt |
AC |
18 ms |
1024 KB |
subtask1_17.txt |
AC |
18 ms |
1024 KB |
subtask1_18.txt |
AC |
19 ms |
1024 KB |
subtask1_19.txt |
AC |
18 ms |
1024 KB |