Submission #1014150

#	Time	Username	Problem	Language	Result	Execution time	Memory
1014150		MarwenElarbi	Boxes with souvenirs (IOI15_boxes)	C++17	Compilation error	0 ms	0 KiB

boxes

#include <bits/stdc++.h>
//#include "boxes.h"
using namespace std;
#define pb push_back
#define ll long long
long long delivery(int N, int K, int L, int p[]) {
    vector<int> a;
    vector<int> b;
    int k=K;
    long long res=1e18;
    for (int i = 0; i < N; ++i)
    {
        if(p[i]==0) continue;
        a.pb(p[i]);
        b.pb(L-p[i]);
    }
    reverse(b.begin(),b.end());
    ll cur=0;
    int cnt=0;
    vector<ll> l(a.size()),r(a.size());
    for (int i = 0; i < a.size(); ++i)
    {   
        cnt++;
        if(cnt==k){
            cur+=a[i]*2;
            cnt=0;
            l[i]=cur;
        }
        else{
            l[i]=a[i]*2+cur;
        }
    }
    cnt=0;
    cur=0;
    for (int i = 0; i < b.size(); ++i)
    {   
        cnt++;
        if(cnt==k){
            cur+=b[i]*2;
            cnt=0;
            r[i]=cur;
        }
        else{
            r[i]=b[i]*2+cur;
        }
    }
    res=L+(a.size()>k ? r[a.size()-k-1] : 1ll*0);
    for (int i = 0; i < a.size(); ++i)
    {
        res=min(res,l[i]+(a.size()>=i+2 ? r[a.size()-i-2] : 0));
        res=min(res,l[i]-a[i]+L+(a.size()>i+k ? r[a.size()-k-i-1] : 1ll*0));
    }
    return res;
}

static char _buffer[1024];
static int _currentChar = 0;
static int _charsNumber = 0;
static FILE *_inputFile, *_outputFile;
 
 
int main() {
    #ifndef ONLINE_JUDGE
        freopen("input.txt", "r", stdin);
        freopen("output.txt", "w", stdout);
    #endif
    int N, K, L, i;
    cin>>N>>K>>L;
    int *p = (int*)malloc(sizeof(int) * (unsigned int)N);
 
    for (i = 0; i < N; i++) {
        cin>>p[i];
    }
 
    cout << delivery(N, K, L, p)<<endl;
    return 0;
}

Compilation message (stderr)

boxes.cpp: In function 'long long int delivery(int, int, int, int*)':
boxes.cpp:21:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |     for (int i = 0; i < a.size(); ++i)
      |                     ~~^~~~~~~~~~
boxes.cpp:35:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |     for (int i = 0; i < b.size(); ++i)
      |                     ~~^~~~~~~~~~
boxes.cpp:47:20: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   47 |     res=L+(a.size()>k ? r[a.size()-k-1] : 1ll*0);
      |            ~~~~~~~~^~
boxes.cpp:48:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   48 |     for (int i = 0; i < a.size(); ++i)
      |                     ~~^~~~~~~~~~
boxes.cpp:50:35: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   50 |         res=min(res,l[i]+(a.size()>=i+2 ? r[a.size()-i-2] : 0));
      |                           ~~~~~~~~^~~~~
boxes.cpp:51:42: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   51 |         res=min(res,l[i]-a[i]+L+(a.size()>i+k ? r[a.size()-k-i-1] : 1ll*0));
      |                                  ~~~~~~~~^~~~
boxes.cpp: In function 'int main()':
boxes.cpp:64:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   64 |         freopen("input.txt", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
boxes.cpp:65:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   65 |         freopen("output.txt", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
boxes.cpp: At global scope:
boxes.cpp:59:27: warning: '_outputFile' defined but not used [-Wunused-variable]
   59 | static FILE *_inputFile, *_outputFile;
      |                           ^~~~~~~~~~~
boxes.cpp:59:14: warning: '_inputFile' defined but not used [-Wunused-variable]
   59 | static FILE *_inputFile, *_outputFile;
      |              ^~~~~~~~~~
boxes.cpp:58:12: warning: '_charsNumber' defined but not used [-Wunused-variable]
   58 | static int _charsNumber = 0;
      |            ^~~~~~~~~~~~
boxes.cpp:57:12: warning: '_currentChar' defined but not used [-Wunused-variable]
   57 | static int _currentChar = 0;
      |            ^~~~~~~~~~~~
boxes.cpp:56:13: warning: '_buffer' defined but not used [-Wunused-variable]
   56 | static char _buffer[1024];
      |             ^~~~~~~
/usr/bin/ld: /tmp/cc7UzkX3.o: in function `main':
grader.c:(.text.startup+0x0): multiple definition of `main'; /tmp/ccdwtHN1.o:boxes.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status