Submission #962288

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
962288	2024-04-13T10:05:38 Z	steveonalex	Rail (IOI14_rail)	C++17	Compilation error	0 ms	0 KB

rail

#include <bits/stdc++.h>
#include "rail.h"
 
using namespace std;
 
typedef long long ll;
typedef unsigned long long ull;
 
#define ALL(v) (v).begin(), (v).end()
#define MASK(i) (1LL << (i))
#define GETBIT(mask, i) (((mask) >> (i)) & 1)
 
// mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
mt19937_64 rng(1);
ll rngesus(ll l, ll r){return ((ull) rng()) % (r - l + 1) + l;}
 
ll max(ll a, ll b){return (a > b) ? a : b;}
ll min(ll a, ll b){return (a < b) ? a : b;}
 
ll LASTBIT(ll mask){return mask & (-mask);}
ll pop_cnt(ll mask){return __builtin_popcountll(mask);}
ll ctz(ll mask){return __builtin_ctzll(mask);}
ll clz(ll mask){return __builtin_clzll(mask);}
ll logOf(ll mask){return 63 - clz(mask);}
 
template <class T1, class T2>
    bool minimize(T1 &a, T2 b){
        if (a > b){a = b; return true;}
        return false;
    }
template <class T1, class T2>
    bool maximize(T1 &a, T2 b){
        if (a < b){a = b; return true;}
        return false;
    }
template <class T>
    void printArr(T& a, string separator = " ", string finish = "\n"){
        for(auto i: a) cout << i << separator;
        cout << finish;
    }
template <class T>
    void remove_dup(vector<T> &a){
        sort(ALL(a));
        a.resize(unique(ALL(a)) - a.begin());
    }

int getDistance(int i, int j){
    cout << "? " << i << " " << j << endl;
    int verdict; cin >> verdict;
    return verdict;
}

void findLocation(int n, int first, int location[], int stype[]){
    memset(location, 0, sizeof location); memset(stype, 0, sizeof stype);
    location[0] = first; stype[0] = 1;

    vector<int> from_0(n), to_0(n);
    pair<int, int> ma = {-1, -1};
    for(int i = 1; i<n; ++i){
        from_0[i] = getDistance(0, i);
        to_0[i] = getDistance(i, 0);
        if (from_0[i] == to_0[i]) {
            location[i] = first + from_0[i];
            stype[i] = 2;
            maximize(ma, make_pair(location[i], i));
        }
    }

    if (ma.second == -1) exit(-1);
    int r = ma.second;
    vector<int> fromR(n);
    fromR[0]= to_0[r];
    for(int i = 1; i<n; ++i) if (stype[i] == 0) {
        fromR[i] = getDistance(r, i);
        stype[i] = 1;
        location[i] = location[r] - fromR[i];
    }
}


// int main(void){
//     ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);

//     int n = 
//     int location[

//     return 0;
// }

Compilation message

rail.cpp: In function 'void findLocation(int, int, int*, int*)':
rail.cpp:54:32: warning: 'sizeof' on array function parameter 'location' will return size of 'int*' [-Wsizeof-array-argument]
   54 |     memset(location, 0, sizeof location); memset(stype, 0, sizeof stype);
      |                                ^~~~~~~~
rail.cpp:53:41: note: declared here
   53 | void findLocation(int n, int first, int location[], int stype[]){
      |                                     ~~~~^~~~~~~~~~
rail.cpp:54:25: warning: argument to 'sizeof' in 'void* memset(void*, int, size_t)' call is the same expression as the destination; did you mean to dereference it? [-Wsizeof-pointer-memaccess]
   54 |     memset(location, 0, sizeof location); memset(stype, 0, sizeof stype);
      |                         ^~~~~~~~~~~~~~~
rail.cpp:54:67: warning: 'sizeof' on array function parameter 'stype' will return size of 'int*' [-Wsizeof-array-argument]
   54 |     memset(location, 0, sizeof location); memset(stype, 0, sizeof stype);
      |                                                                   ^~~~~
rail.cpp:53:57: note: declared here
   53 | void findLocation(int n, int first, int location[], int stype[]){
      |                                                     ~~~~^~~~~~~
rail.cpp:54:60: warning: argument to 'sizeof' in 'void* memset(void*, int, size_t)' call is the same expression as the destination; did you mean to dereference it? [-Wsizeof-pointer-memaccess]
   54 |     memset(location, 0, sizeof location); memset(stype, 0, sizeof stype);
      |                                                            ^~~~~~~~~~~~
/usr/bin/ld: /tmp/cctbLPBq.o: in function `getDistance':
grader.cpp:(.text+0x0): multiple definition of `getDistance'; /tmp/ccYIQaAr.o:rail.cpp:(.text+0x90): first defined here
collect2: error: ld returned 1 exit status