Submission #81147

#	Time	Username	Problem	Language	Result	Execution time	Memory
81147		GoodTrung	Wiring (IOI17_wiring)	C++14	Compilation error	0 ms	0 KiB

wiring

#include <bits/stdc++.h>
#define fi first
#define se second
#define NAME "wiring"
using namespace std;
typedef long long LL;
typedef pair <int, int> pii;
typedef double DB;
typedef pair <LL, LL> pLL;
const int NMAX = 1e6+7;

int n, m, x[NMAX], y[NMAX], f[NMAX];
pii a[NMAX];

int64_t min_total_length(int r[], int b[]) {
    int64_t res = 0;

    if(r[n-1] < b[0]) {
        for(int i = 0; i < n; ++i)
            res += abs(b[0] - r[i]);
        for(int i = 0; i < m; ++i)
            res += abs(r[n-1] - b[i]);
        return res;
    }

    for(int i = 0; i < n; ++i) {
        a[i].fi = r[i];
        a[i].se = 0;
    }
    for(int i = 0; i < m; ++i) {
        a[i+n].fi = b[i];
        a[i+n].se = 1;
    }
    int nm = n + m;
    sort(a, a + nm);
    int i = 0, j = 0, ck = 0;
    while(i < nm) {
        while(j+1 < nm && a[j+1].se == a[i].se) j++;

        int pos1, pos2;
        if(i > 0) pos1 = a[i-1].fi;
        else pos1 = INT_MAX;
        if(j < nm-1) pos2 = a[j+1].fi;
        else pos2 = INT_MAX;

        for(int t = i; t <= j; ++t)
            res += min(abs(pos1 - a[t].fi), abs(pos2 - a[t].fi));
        if(i > 0 && ck == 1)
            res -= abs(pos1 - a[i].fi);
        if(abs(pos1 - a[j].fi) > abs(pos2 - a[j].fi)) ck = 1;
        else ck = 0;
        j++; i = j;
    }
    return res;
}

int main() {
    ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    //freopen(NAME".inp", "r", stdin);
    //freopen(NAME".out", "w", stdout);
    cin >> n >> m;
    for(int i = 0; i < n; ++i)
        cin >> x[i];
    for(int i = 0; i < m; ++i)
        cin >> y[i];
    cout << min_total_length(x, y);
}

Compilation message (stderr)

/tmp/cckW3pyH.o: In function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/ccAeZy25.o:wiring.cpp:(.text.startup+0x0): first defined here
/tmp/cckW3pyH.o: In function `main':
grader.cpp:(.text.startup+0x23b): undefined reference to `min_total_length(std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status