#include <bits/stdc++.h>
using namespace std;
#define MOD 1000000007
#define ll long long int
#define vi vector<int>
#define vii vector< vector<int> >
#define PI 3.1415926535897932384626433832795
#define INF 9223372036854775807LL
double dist[150002][3];
bool occ[150002][3];
int main() {
ios::sync_with_stdio(false);
cin.tie(NULL);
int n,m;
cin >> n >> m;
map<int,pair<int,int> > pass;
pair<int,int> mnat = {1,1};
for(int i = 1; i <= n; i++) {
dist[i][1] = dist[i][2] = 3000000;
}
for(int ev = 1; ev <= m; ev++) {
char ch;
cin >> ch;
if(ch == 'E') {
mnat = {1,1};
for(int i = 1; i <= n; i++) {
for(int c = 1; c <= 2; c++) {
if(dist[i][c] > dist[mnat.first][mnat.second]+0.000001) {
mnat = {i,c};
}
}
}
pass[ev] = mnat;
cout << mnat.first << " " << mnat.second << "\n";
occ[mnat.first][mnat.second] = true;
for(int c = 1; c <= 2; c++) {
int lastwasat = mnat.first;
for(int i = mnat.first; i <= n; i++) {
double dis = sqrt((i-lastwasat)*(i-lastwasat)+(c-mnat.second)*(c-mnat.second));
if(dist[i][c] < dis+1.5) {
break;
}
dist[i][c] = min(dist[i][c],dis);
}
for(int i = mnat.first; i >= 1; i--) {
double dis = sqrt((i-lastwasat)*(i-lastwasat)+(c-mnat.second)*(c-mnat.second));
if(dist[i][c] < dis+1.5) {
break;
}
dist[i][c] = min(dist[i][c],dis);
}
}
} else {
int x;
cin >> x;
auto pr = pass[x];
occ[pr.first][pr.second] = false;
pass.erase(x);
int fr = 1;
int to = n;
for(int i = pr.first; i < n; i++) {
if(occ[i][1] || occ[i][2]) {
to = min(n,i+2);
}
}
for(int i = pr.first; i >= 1; i--) {
if(occ[i][1] || occ[i][2]) {
fr = max(1,i-2);
}
}
for(int i = fr; i <= to; i++) {
dist[i][1] = dist[i][2] = 3000000;
}
for(int c = 1; c <= 2; c++) {
int lastwasat = -1;
for(int i = fr; i <= to; i++) {
if(occ[i][c]) {
lastwasat = i;
}
if(lastwasat != -1) {
dist[i][c] = min(dist[i][c],double(i-lastwasat));
}
}
lastwasat = -1;
for(int i = to; i >= fr; i--) {
if(occ[i][c]) {
lastwasat = i;
}
if(lastwasat != -1) {
dist[i][c] = min(dist[i][c],double(lastwasat-i));
}
}
}
for(int c = 1; c <= 2; c++) {
int lastwasat = -1;
for(int i = fr; i <= to; i++) {
if(occ[i][3-c]) {
lastwasat = i;
}
if(lastwasat != -1) {
dist[i][c] = min(dist[i][c],sqrt((i-lastwasat)*(i-lastwasat)+1));
}
}
lastwasat = -1;
for(int i = to; i >= fr; i--) {
if(occ[i][3-c]) {
lastwasat = i;
}
if(lastwasat != -1) {
dist[i][c] = min(dist[i][c],sqrt((i-lastwasat)*(i-lastwasat)+1));
}
}
}
}
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
19 ms |
492 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
20 ms |
492 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
1075 ms |
4148 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
1081 ms |
4208 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
1089 ms |
1388 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
1053 ms |
3996 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |