Submission #996448

#	Time	Username	Problem	Language	Result	Execution time	Memory
996448		fryingduc	Boxes with souvenirs (IOI15_boxes)	C++17	0 / 100	4 ms	604 KiB

boxes

#include "bits/stdc++.h"
#include "boxes.h"
using namespace std;
const int maxn = 1e7 + 7;

long long fcw[maxn], fccw[maxn];
long long delivery(int n, int k, int l, int pos[]) {
    for(int i = 1; i <= n; ++i) {
        fcw[i] = fcw[max(0, i - k)] + pos[i] + min(pos[i], l - pos[i]); 
    }
    for(int i = n; i; --i) {
        fccw[i] = fccw[min(n + 1, i + k)] + (l - pos[i]) + min(pos[i], l - pos[i]);
    }
    
    long long ans = 1e18;
    for(int i = 1; i <= n; ++i) {
        ans = min(ans, fccw[i] + fcw[i] - min(pos[i], l - pos[i]));
    }
    cout << ans;
}

Compilation message (stderr)

boxes.cpp: In function 'long long int delivery(int, int, int, int*)':
boxes.cpp:20:1: warning: no return statement in function returning non-void [-Wreturn-type]
   20 | }
      | ^

• Subtask 1: 0 / 10
• Subtask 2: 0 / 10
• Subtask 3: 0 / 15
• Subtask 4: 0 / 15
• Subtask 5: 0 / 20
• Subtask 6: 0 / 30