Submission #1294480

#TimeUsernameProblemLanguageResultExecution timeMemory
1294480ghammazhassanBoxes with souvenirs (IOI15_boxes)C++20
10 / 100
1 ms580 KiB
#include "boxes.h"
#include <iostream>
#include <cmath>
#include <algorithm>
#include <map>
#include <unordered_map>
#include <vector>
#include <iomanip>
#include <string>
#include <queue>
#include <set>
#include <deque>
using namespace std;
// static char _buffer[1024];
// static int _currentChar = 0;
// static int _charsNumber = 0;
// static FILE *_inputFile, *_outputFile;

// static inline int _read() {
//     if (_charsNumber < 0) {
//         exit(1);
//     }
//     if (!_charsNumber || _currentChar == _charsNumber) {
//         _charsNumber = (int)fread(_buffer, sizeof(_buffer[0]), sizeof(_buffer), _inputFile);
//         _currentChar = 0;
//     }
//     if (_charsNumber <= 0) {
//         return -1;
//     }
//     return _buffer[_currentChar++];
// }

// static inline int _readInt() {
//     int c, x, s;
//     c = _read();
//     while (c <= 32) c = _read();
//     x = 0;
//     s = 1;
//     if (c == '-') {
//         s = -1;
//         c = _read();
//     }
//     while (c > 32) {
//         x *= 10;
//         x += c - '0';
//         c = _read();
//     }
//     if (s < 0) x = -x;
//     return x;
// }
int n,k,l;
int dis(int x){
    return min(x,l-x);
}
long long delivery(int N,int K,int L, int b[]){
    n=N,k=K,l=L;
    deque<int>a;
    for (int i=0;i<n;i++){
        a.push_back(b[i]);
    }
    int c=0;
    k--;
    while (a.size()){
        int p;
        if (dis(a.front())<=dis(a.back())){
            p=a.front();
            a.pop_front();
            c+=dis(p);
            for (int i=0;i<k;i++){
                if (!a.size())break;
                if (dis(a.front())+dis(p)<=abs(p-a.front())){
                    break;
                }
                c+=abs(p-a.front());
                p=a.front();
                a.pop_front();
            }
            c+=dis(p);
        }
        else{
            p=a.back();
            a.pop_back();
            c+=dis(p);
            for (int i=0;i<k;i++){
                if (!a.size())break;
                if (dis(a.back())+dis(p)<=abs(p-a.back())){
                    break;
                }
                c+=abs(p-a.back());
                p=a.back();
                a.pop_back();
            }
            c+=dis(p);
        }
    }
    return c;
}
// int main() {

// 	_inputFile = fopen("input.txt", "rb");
// 	_outputFile = fopen("output.txt", "w");

//     int N, K, L, i;
//     N = _readInt();
//     K = _readInt();
//     L = _readInt();

//     int *p = (int*)malloc(sizeof(int) * (unsigned int)N);

//     for (i = 0; i < N; i++) {
//         p[i] = _readInt();
//     }

//     fprintf(_outputFile, "%lld\n", delivery(N, K, L, p));
//     return 0;
// }
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