Submission #526611

#	Time	Username	Problem	Language	Result	Execution time	Memory
526611		Monarchuwu	Bubble Sort 2 (JOI18_bubblesort2)	C++17	Compilation error	0 ms	0 KiB

bubblesort2

#include<iostream>
#include<algorithm>
using namespace std;
typedef long long ll;

const int N = 5e5 + 5;
int n, q;
int a[N];

int b[N];
void update(int p, int old_val, int new_val) {
    b[p] = 0;
    for (int i = 0; i < p; ++i) b[p] += a[i] > new_val;
    for (int i = p + 1; i < n; ++i) {
        b[i] -= old_val > a[i];
        b[i] += new_val > a[i];
    }
}
int query() { return *max_element(b, b + n); }

int main() {
    cin.tie(NULL)->sync_with_stdio(false);
    cin >> n >> q;
    for (int i = 0; i < n; ++i)
        cin >> a[i], update(i, 0, a[i]);

    int x, v; while (q--) {
        cin >> x >> v;
        update(x, a[x], v);
        a[x] = v;

        cout << query() << '\n';
    }
}
/**  /\_/\
 *  (= ._.)
 *  / >0  \>1
**/

Compilation message (stderr)

/usr/bin/ld: /tmp/ccTLbNas.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccqzyuhr.o:bubblesort2.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccTLbNas.o: in function `main':
grader.cpp:(.text.startup+0x181): undefined reference to `countScans(std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status