Submission #549372

#TimeUsernameProblemLanguageResultExecution timeMemory
549372joshjmsBoxes with souvenirs (IOI15_boxes)C++14
0 / 100
4 ms340 KiB
#include "boxes.h"

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

#define ll long long
#define ld long double
#define pb push_back
#define fi first
#define se second
#define debug(x) cout << #x << " => " << x << "\n";

const int mod = 1e9 + 7;

int n, k, l, p[10000005], idx;
int le, ri;

ll dp[10000005][2];
ll ans;

ll delivery(int N, int K, int L, int P[]) {
    n = N, k = K, l = L;
    for(int i = 0; i < n; i++) {
        if(P[i]) p[++idx] = P[i];
    }
    n = idx;
    if(n == 0) return 0;
    ans = min(dp[p[1]][0], dp[p[n]][1]);
    for(int i = 2; i <= n; i++) {
        assert(p[i] >= 0 && p[i] < l);
        ans = min(ans, dp[p[i]][0] + dp[p[i - 1]][1]);
    }
    return ans;
}

// 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 main() {
// 	_inputFile = stdin;
// 	_outputFile = stdout;

//     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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