Submission #1152083

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1152083	2025-02-17 15:40:45	SmuggingSpun	Building Bridges (CEOI17_building)	C++20	30 / 100	1 ms	328 KiB

building

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#include<bits/stdc++.h>
#define taskname "A"
using namespace std;
typedef long long ll;
const ll INF = 1e18;
template<class T>void minimize(T& a, T b){
  if(a > b){
    a = b;
  }
}
ll square(int x){
  return 1LL * x * x;
}
int n;
namespace sub1{
  void solve(){
    vector<int>h(n + 1), w(n + 1);
    for(int i = 1; i <= n; i++){
      cin >> h[i];
    }
    for(int i = 1; i <= n; i++){
      cin >> w[i];
    }
    vector<ll>dp(n + 1, INF);
    dp[1] = 0;
    for(int i = 2; i <= n; i++){
      ll sum = 0;
      for(int j = i - 1; j > 0; sum += w[j--]){
        minimize(dp[i], dp[j] + square(h[i] - h[j]) + sum);
      }
 
 
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Compilation message (stderr)

building.cpp: In function 'int main()':
building.cpp:38:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   38 |                 freopen(taskname".inp", "r", stdin);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 30 / 30
• Subtask 2: 0 / 30
• Subtask 3: 0 / 40