Submission #945922

#	Time	Username	Problem	Language	Result	Execution time	Memory
945922		Nika533	Boxes with souvenirs (IOI15_boxes)	C++14	35 / 100	3 ms	600 KiB

boxes

#pragma GCC diagnostic warning "-std=c++11"
#include <bits/stdc++.h>
#include "boxes.h"
#define pb push_back
#define f first
#define s second
#define MOD 1000000007
#define flush fflush(stdout)
#define all(x) (x).begin(),(x).end()
#define allr(x) (x).rbegin(), (x).rend()
#define pii pair<int,int>
using namespace std;
int n,m,T,k;
long long delivery(int N, int K, int L, int p[]) {
	if (K==1) {
		long long ans=0;
		for (int i=0; i<N; i++) {
			ans+=min(p[i],L-p[i])*2;
		}
		return ans;
	}
	if (K==N) {
		long long ans=0;
		vector<pii> v1,v2;
		for (int i=0; i<N; i++) {
			if (p[i]<L/2) v1.pb({p[i],i});
			else v2.pb({p[i],i});
		}
		sort(all(v1)); sort(all(v2));
		int l1=0,l2=0;
		if (v1.size()) l1=v1.back().f;
		if (v2.size()) l2=L-v2[0].f;
		ans=min(L,l1*2+l2*2);
		return ans;
	}
	long long ans=1e18;
	for (int mask=0; mask<(1<<N); mask++) {
		vector<int> v1,v2;
		for (int j=0; j<N; j++) {
			if (mask&(1<<j)) v1.pb(p[j]);
			else v2.pb(L-p[j]);
		}
		long long ans2=0;
		sort(all(v1)); sort(all(v2));
		for (int i=v1.size()-1; i>=0; i-=K) {
			ans2+=min(v1[i]*2,L);
		}
		for (int i=v2.size()-1; i>=0; i-=K) {
			ans2+=min(v2[i]*2,L);
		}
		ans=min(ans,ans2);
	}
	return ans;
}

Compilation message (stderr)

boxes.cpp:1:32: warning: '-std=c++11' is not an option that controls warnings [-Wpragmas]
    1 | #pragma GCC diagnostic warning "-std=c++11"
      |                                ^~~~~~~~~~~~
boxes.cpp: In function 'long long int delivery(int, int, int, int*)':
boxes.cpp:45:23: warning: conversion from 'std::vector<int>::size_type' {aka 'long unsigned int'} to 'int' may change value [-Wconversion]
   45 |   for (int i=v1.size()-1; i>=0; i-=K) {
      |              ~~~~~~~~~^~
boxes.cpp:48:23: warning: conversion from 'std::vector<int>::size_type' {aka 'long unsigned int'} to 'int' may change value [-Wconversion]
   48 |   for (int i=v2.size()-1; i>=0; i-=K) {
      |              ~~~~~~~~~^~

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