Submission #276612

#	Time	Username	Problem	Language	Result	Execution time	Memory
276612		arnold518	Radio (Balkan15_RADIO)	C++14	0 / 100	1 ms	256 KiB

radio

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int MAXN = 1000;

struct Data
{
	int X, P, S;
};

int N, K;
Data A[MAXN+10];

int main()
{
	scanf("%d%d", &N, &K);
	for(int i=1; i<=N; i++) scanf("%d%d%d", &A[i].X, &A[i].P, &A[i].S);
	if(N==1) return !printf("0\n");

	ll ans=1e18;
	for(int i=1; i<N; i++)
	{
		vector<ll> V; int cnt=0;
		for(int j=1; j<=i; j++) V.push_back(A[j].X+A[j].P);
		for(int j=i+1; j<=N; j++) V.push_back(A[j].X-A[j].P), cnt++;
		sort(V.begin(), V.end());
		ll k=V[cnt-1];
		ll now=0;
		for(int j=1; j<=i; j++) now+=max(0ll, k-A[j].X-A[j].P);
		for(int j=i+1; j<=N; j++) now+=max(0ll, A[j].X-A[j].P-k);
		ans=min(ans, now);
	}
	printf("%lld\n", -ans);
}

Compilation message (stderr)

radio.cpp: In function 'int main()':
radio.cpp:20:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   20 |  scanf("%d%d", &N, &K);
      |  ~~~~~^~~~~~~~~~~~~~~~
radio.cpp:21:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   21 |  for(int i=1; i<=N; i++) scanf("%d%d%d", &A[i].X, &A[i].P, &A[i].S);
      |                          ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 15
• Subtask 2: 0 / 15
• Subtask 3: 0 / 15
• Subtask 4: 0 / 15
• Subtask 5: 0 / 15
• Subtask 6: 0 / 25