Submission #967193

#	Time	Username	Problem	Language	Result	Execution time	Memory
967193		ByeWorld	Palembang Bridges (APIO15_bridge)	C++14	22 / 100	85 ms	4636 KiB

bridge

#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;
int pr[MAXN];

signed main(){
	// ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	cin >> K >> n;
	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<=vec.size()-1; i++){
		ans += abs(vec[(siz+1)/2]-vec[i]);
	}
	ans += siz/2;
	cout << ans << '\n';
}

Compilation message (stderr)

bridge.cpp: In function 'int main()':
bridge.cpp:33:16: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |  for(int i=1; i<=vec.size()-1; i++){
      |               ~^~~~~~~~~~~~~~
bridge.cpp:32:6: warning: unused variable 'MN' [-Wunused-variable]
   32 |  int MN = INF, siz = vec.size()-1;
      |      ^~

• Subtask 1: 8 / 8
• Subtask 2: 14 / 14
• Subtask 3: 0 / 9
• Subtask 4: 0 / 32
• Subtask 5: 0 / 37