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Submission #886120

# Submission time Handle Problem Language Result Execution time Memory
886120 2023-12-11T13:26:33 Z vjudge1 Airplane (NOI23_airplane) C++17
0 / 100
 123 ms 16048 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
constexpr int INF = LONG_LONG_MAX;
int32_t main(){
	int n,m;cin>>n>>m;
	vector<int> val(n);
	for (int i = 0; i < n; ++i)
	{
		cin>>val[i];
	}
	vector<vector<int>> arr(n);
	for (int i = 0; i < m; i++){
		int u,v;cin>>u>>v;
		arr[u-1].push_back(v-1);
		arr[v-1].push_back(u-1);
	}
	vector<int> dp1(n);
	vector<int> dp2(n);
	int crmax = 0;
	int crans = 0;
	int ans = INF;
	for (int i = 1; i < n; ++i)
	{
		if (crmax>=val[i]) crans++;
		else crans+=val[i]-crmax;
		dp1[i]=crans;
		crmax=max(crmax,val[i]);
	}
	ans=crans+crmax;
	crmax=0;
	crans=0;
	for (int i = n-2; i >= 0; --i){
		if (crmax>=val[i]) crans++;
		else crans+=val[i]-crmax;
		dp2[i]=crans;
		crmax=max(crmax,val[i]);
	}
	ans=min(ans,crans+crmax);
	for (int i = 1; i < n-1; ++i)
	{
		ans=min(ans,dp1[i]+dp2[i]);
	}
	cout<<ans<<endl;
}

Subtask #1
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Incorrect 123 ms 16048 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Incorrect 0 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Incorrect 0 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Incorrect 123 ms 16048 KB Output isn't correct
3 Halted 0 ms 0 KB -