Submission #288735

#	Time	Username	Problem	Language	Result	Execution time	Memory
288735		Ozy	Boxes with souvenirs (IOI15_boxes)	C++17	100 / 100	645 ms	232328 KiB

boxes

#include "boxes.h"
#include <bits/stdc++.h>
using namespace std;
#define rep(i,a,b) for (int i = (a); i <= (b); i++)
#define debug(a) cerr << #a << " = " << a << endl

vector<int> izq,der,arr;
vector<long long int> cizq, cder;


long long delivery(int N, int K, int L, int p[]) {
    long long int mitad,a,ini,fin,b,cont,Ma,Mb;
    long long int res,MIN,sum,l, sI, sD;

    res = 0;
    mitad = L/2;
    izq.clear();
    der.clear();
    arr.clear();
    cizq.clear();
    cder.clear();

    rep(i,0,N-1) {
        if (p[i] <= mitad) izq.push_back(p[i]);
        else der.push_back(L - p[i]);
    }
    if (!der.empty()) reverse(der.begin(), der.end());

    if (!izq.empty()){
    rep(i, 0, izq.size() - 1){
        if (i >= K) cizq.push_back((2 * izq[i]) + cizq[i - K]);
        else cizq.push_back(2 * izq[i]);
    }
    }

    if (!der.empty()){
    rep(i, 0, der.size() - 1){
        if (i >= K) cder.push_back((2 * der[i]) + cder[i - K]);
        else cder.push_back(2 * der[i]);
    }
    }

    sI = izq.size() - 1;
    sD = der.size() - 1;

    MIN = 0;
    if (sI >= 0) MIN += cizq[sI];
    if (sD >= 0) MIN += cder[sD];

    rep(i,0,K) {

        a = L;
        if (sD - i >= 0) a += cder[sD - i];
        if (sI - (K - i) >= 0) a += cizq[sI - (K - i)];
        MIN = min(MIN,a);

    }

    cerr << MIN;
    return MIN;

}

Compilation message (stderr)

boxes.cpp: In function 'long long int delivery(int, int, int, int*)':
boxes.cpp:5:40: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    5 | #define rep(i,a,b) for (int i = (a); i <= (b); i++)
      |                                        ^
boxes.cpp:31:5: note: in expansion of macro 'rep'
   31 |     rep(i, 0, izq.size() - 1){
      |     ^~~
boxes.cpp:5:40: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    5 | #define rep(i,a,b) for (int i = (a); i <= (b); i++)
      |                                        ^
boxes.cpp:38:5: note: in expansion of macro 'rep'
   38 |     rep(i, 0, der.size() - 1){
      |     ^~~
boxes.cpp:13:27: warning: unused variable 'ini' [-Wunused-variable]
   13 |     long long int mitad,a,ini,fin,b,cont,Ma,Mb;
      |                           ^~~
boxes.cpp:13:31: warning: unused variable 'fin' [-Wunused-variable]
   13 |     long long int mitad,a,ini,fin,b,cont,Ma,Mb;
      |                               ^~~
boxes.cpp:13:35: warning: unused variable 'b' [-Wunused-variable]
   13 |     long long int mitad,a,ini,fin,b,cont,Ma,Mb;
      |                                   ^
boxes.cpp:13:37: warning: unused variable 'cont' [-Wunused-variable]
   13 |     long long int mitad,a,ini,fin,b,cont,Ma,Mb;
      |                                     ^~~~
boxes.cpp:13:42: warning: unused variable 'Ma' [-Wunused-variable]
   13 |     long long int mitad,a,ini,fin,b,cont,Ma,Mb;
      |                                          ^~
boxes.cpp:13:45: warning: unused variable 'Mb' [-Wunused-variable]
   13 |     long long int mitad,a,ini,fin,b,cont,Ma,Mb;
      |                                             ^~
boxes.cpp:14:19: warning: variable 'res' set but not used [-Wunused-but-set-variable]
   14 |     long long int res,MIN,sum,l, sI, sD;
      |                   ^~~
boxes.cpp:14:27: warning: unused variable 'sum' [-Wunused-variable]
   14 |     long long int res,MIN,sum,l, sI, sD;
      |                           ^~~
boxes.cpp:14:31: warning: unused variable 'l' [-Wunused-variable]
   14 |     long long int res,MIN,sum,l, sI, sD;
      |                               ^

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