#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define sz(a) (int)a.size()
#define all(a) begin(a),end(a)
#define int long long
const int N = (int)2e5+10;
int n, a[N][3];
int32_t main(){
ios_base::sync_with_stdio(false); cin.tie(0);
cin >> n; int ans = 0, xd = 0;
for(int i = 0; i < 2*n; i++){
int x, y; cin >> x >> y;
int X = x, Y = y;
x=clamp(x,1ll,n), y=clamp(y,1ll,2ll);
ans+=abs(X-x)+abs(Y-y); a[x][y]++;
}
for(int i = 1; i <= n; i++)
xd+=a[i][1], a[i][1]+=a[i][2];
ans+=abs(xd-n);
int j = 1;
for(int i = 1; i < n; i++){
int tot = a[i][1];
if(tot==2) continue;
if(tot<2){
int need = 2-tot;
j = max(j,i);
while(1){
while(j<n and !a[j][1]) j++;
int use = min(need,a[j][1]);
a[j][1]-=use; a[i][1]+=use;
ans+=(j-i)*use; need-=use;
if(!need) break;
}
}
else{
tot-=2; ans+=tot;
a[i+1][1]+=tot,a[i][1]-=tot;
}
}
cout << ans << "\n";
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
336 KB |
Output is correct |
2 |
Correct |
1 ms |
336 KB |
Output is correct |
3 |
Correct |
1 ms |
336 KB |
Output is correct |
4 |
Correct |
1 ms |
336 KB |
Output is correct |
5 |
Correct |
1 ms |
336 KB |
Output is correct |
6 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
7 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
336 KB |
Output is correct |
2 |
Correct |
1 ms |
336 KB |
Output is correct |
3 |
Correct |
1 ms |
336 KB |
Output is correct |
4 |
Correct |
1 ms |
336 KB |
Output is correct |
5 |
Correct |
1 ms |
336 KB |
Output is correct |
6 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
7 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
336 KB |
Output is correct |
2 |
Correct |
1 ms |
336 KB |
Output is correct |
3 |
Correct |
1 ms |
336 KB |
Output is correct |
4 |
Correct |
1 ms |
336 KB |
Output is correct |
5 |
Correct |
1 ms |
336 KB |
Output is correct |
6 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
7 |
Halted |
0 ms |
0 KB |
- |