oj.uz

Submission #967213

# Submission time Handle Problem Language Result Execution time Memory
967213 2024-04-21T14:00:49 Z ByeWorld Palembang Bridges (APIO15_bridge) C++14
22 / 100
 38 ms 3688 KB 
#include <bits/stdc++.h>
#define ll long long
#define int long long
#define pb push_back
#define fi first
#define se second
using namespace std;
const int MAXN = 2e5+10;
const int INF = 1e18+10;
typedef pair<int,int> pii;
typedef pair<int,pii> ipii;

int K, n;
int ans;
vector <int> vec;
vector <pii> seg;
int pr[MAXN];

signed main(){
	ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	cin >> K >> n;
	if(K==1){
		// exit(0);
		vec.pb(-1);
		for(int i=1; i<=n; i++){
			char x, y; int a, b;
			cin >> x >> a >> y >> b; a++; b++;
			if(x==y) ans += abs(a-b);
			else {
				vec.pb(a); vec.pb(b);
			}
		}
		sort(vec.begin(), vec.end()); 

		int MN = INF, siz = vec.size()-1;
		for(int i=1; i<=siz; i++){
			ans += abs(vec[(siz+1)/2]-vec[i]);
		}
		ans += siz/2;
		cout << ans << '\n';
	} else {
		vector <int> cc; cc.pb(-1);
		seg.pb({-1, -1});
		for(int i=1; i<=n; i++){
			char x, y; int a, b;
			cin >> x >> a >> y >> b; a++; b++;
			if(x==y) ans += abs(a-b);
			else {
				if(a > b) swap(a, b);
				seg.pb({a, b});
				cc.pb(a); cc.pb(b);
			}
		}
		// sort(seg.begin(), seg.end()); 
		// sort(cc.begin(), cc.end());
		// cc.resize(unique(cc.begin(), cc.end()) - cc.begin());

		// cout << ans << " ans\n";
		int MN = INF, siz = seg.size()-1, all = cc.size()-1, las = 1;
		for(int i=1; i<=all; i++){
			for(int j=1; j<=all; j++){
				int te = 0, le = cc[i], ri = cc[j];

				for(int k=1; k<=siz; k++){
					int l = seg[k].fi, r = seg[k].se;

					// if(l<=le && le<=r) te += (r-l);
					// else if(l<=ri && ri<=r) te += (r-l);
					// else {
						te += min(abs(l-le)+abs(r-le), abs(l-ri)+abs(r-ri));
					// }
				}
				MN = min(MN, te);
			}
		}
		ans += siz;
		cout << ans+MN << '\n';
	}
}

Compilation message

bridge.cpp: In function 'int main()':
bridge.cpp:35:7: warning: unused variable 'MN' [-Wunused-variable]
   35 |   int MN = INF, siz = vec.size()-1;
      |       ^~
bridge.cpp:59:56: warning: unused variable 'las' [-Wunused-variable]
   59 |   int MN = INF, siz = seg.size()-1, all = cc.size()-1, las = 1;
      |                                                        ^~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 772 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 3 ms 344 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 500 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 476 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 484 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 17 ms 3208 KB Output is correct
13 Correct 33 ms 3532 KB Output is correct
14 Correct 24 ms 3028 KB Output is correct
15 Correct 19 ms 2512 KB Output is correct
16 Correct 20 ms 3288 KB Output is correct
17 Correct 23 ms 3532 KB Output is correct
18 Correct 27 ms 3412 KB Output is correct
19 Correct 38 ms 3688 KB Output is correct
20 Correct 22 ms 3544 KB Output is correct
21 Correct 29 ms 3532 KB Output is correct

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 544 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 37.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -