Submission #964460

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
964460	2024-04-17T00:21:48 Z	beaboss	Horses (IOI15_horses)	C++17	Compilation error	0 ms	0 KB

horses

// Source: https://oj.uz/problem/view/IOI15_horses
// 

#include "bits/stdc++.h"

using namespace std;

#define s second
#define f first
#define pb push_back

typedef long long ll;

typedef pair<ll, ll> pii;
typedef vector<pii> vpii;

typedef vector<ll> vi;

#define FOR(i, a, b) for (ll i = (a); i<b; i++)

bool ckmin(ll& a, ll b){ return b < a ? a = b, true : false; }

bool ckmax(ll& a, ll b){ return b > a ? a = b, true : false; }

const ll N = 1e5 + 10;
const ll MOD = 1e9 + 7;
#define lc i << 1
#define rc (i << 1) + 1



ll binpow(ll x, ll n) { // x ^ n
	ll res = 1;
	while (n > 0) {
		if (n & 1) res = (res * x) % MOD;
		x = (x * x) % MOD;
		n/=2;
	}
	return res;
}

struct node {
	ll val, lz;
} st[4 * N];

void down(ll i) {
	if (st[i].lz == 1) return;
	st[lc].lz = st[lc].lz * st[i].lz % MOD;
	st[rc].lz = st[rc].lz * st[i].lz %MOD;
	st[lc].val = st[lc].val * st[i].lz % MOD;
	st[rc].val = st[rc].val * st[i].lz % MOD;
	st[i].lz = 1;

}

void up(ll i) {
	st[i].val = max(st[lc].val, st[rc].val);
}

void update(ll ul, ll ur, ll val, ll i = 1, ll l = 0, ll r = N) {
	// cout << l << r << ' ' << st[i].lz << ' ' << val << endl;

	if (r == l) return;
	if (ul <= l && r <= ur) {
		st[i].lz = (st[i].lz*val) % MOD;
		st[i].val = (st[i].val * val) % MOD;
		// cout << l << r <<  ' ' << st[i].lz << ' ' << val  << endl;

		return;
	}
	if (l == r-1) return;

	down(i);
	ll m = (l + r) / 2;
	if (ul < m) update(ul, ur, val, lc, l, m);
	if (m  < ur) update(ul, ur, val, rc, m, r);

	up(i);

	// cout << l << r << ' ' << st[i].lz << ' ' << val << endl;
}

vi fx, fy;
ll nn;
ll init(int n, vector<int> x, vector<int> y) {
	nn = n;
	fx = x, fy = y;
	FOR(i, 0, 4 * N) {
		st[i].val = st[i].lz = 1;
	}
	FOR(i, 0, n) {
		update(i, n, x[i]);
		// break;
		update(i, i + 1, y[i]);
		// break;

	}

	return st[1].val;
}

ll updateX(int pos, int val) {
	update(pos, nn, binpow(fx[pos], MOD-2));
	fx[pos]=val;
	update(pos, nn, fx[pos]);
	return st[1].val;
}

ll updateY(int pos, int val) {
	update(pos, pos + 1, binpow(fy[pos], MOD-2));
	fy[pos]=val;
	update(pos, pos, fy[pos]);
	return st[1].val;
}


// int main() {
// 	ios::sync_with_stdio(false);
// 	cin.tie(nullptr);

// 	cout << init(3, {2, 1, 3}, {3, 4, 1}) << endl;
// 	cout << updateY(1, 2) << endl;

// }

Compilation message

horses.cpp: In function 'll init(int, std::vector<int>, std::vector<int>)':
horses.cpp:87:7: error: no match for 'operator=' (operand types are 'vi' {aka 'std::vector<long long int>'} and 'std::vector<int>')
   87 |  fx = x, fy = y;
      |       ^
In file included from /usr/include/c++/10/vector:72,
                 from /usr/include/c++/10/functional:62,
                 from /usr/include/c++/10/pstl/glue_algorithm_defs.h:13,
                 from /usr/include/c++/10/algorithm:74,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from horses.cpp:4:
/usr/include/c++/10/bits/vector.tcc:198:5: note: candidate: 'std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(const std::vector<_Tp, _Alloc>&) [with _Tp = long long int; _Alloc = std::allocator<long long int>]'
  198 |     vector<_Tp, _Alloc>::
      |     ^~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/vector.tcc:199:42: note:   no known conversion for argument 1 from 'std::vector<int>' to 'const std::vector<long long int>&'
  199 |     operator=(const vector<_Tp, _Alloc>& __x)
      |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
In file included from /usr/include/c++/10/vector:67,
                 from /usr/include/c++/10/functional:62,
                 from /usr/include/c++/10/pstl/glue_algorithm_defs.h:13,
                 from /usr/include/c++/10/algorithm:74,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from horses.cpp:4:
/usr/include/c++/10/bits/stl_vector.h:709:7: note: candidate: 'std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(std::vector<_Tp, _Alloc>&&) [with _Tp = long long int; _Alloc = std::allocator<long long int>]'
  709 |       operator=(vector&& __x) noexcept(_Alloc_traits::_S_nothrow_move())
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:709:26: note:   no known conversion for argument 1 from 'std::vector<int>' to 'std::vector<long long int>&&'
  709 |       operator=(vector&& __x) noexcept(_Alloc_traits::_S_nothrow_move())
      |                 ~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_vector.h:730:7: note: candidate: 'std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(std::initializer_list<_Tp>) [with _Tp = long long int; _Alloc = std::allocator<long long int>]'
  730 |       operator=(initializer_list<value_type> __l)
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:730:46: note:   no known conversion for argument 1 from 'std::vector<int>' to 'std::initializer_list<long long int>'
  730 |       operator=(initializer_list<value_type> __l)
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
horses.cpp:87:15: error: no match for 'operator=' (operand types are 'vi' {aka 'std::vector<long long int>'} and 'std::vector<int>')
   87 |  fx = x, fy = y;
      |               ^
In file included from /usr/include/c++/10/vector:72,
                 from /usr/include/c++/10/functional:62,
                 from /usr/include/c++/10/pstl/glue_algorithm_defs.h:13,
                 from /usr/include/c++/10/algorithm:74,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from horses.cpp:4:
/usr/include/c++/10/bits/vector.tcc:198:5: note: candidate: 'std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(const std::vector<_Tp, _Alloc>&) [with _Tp = long long int; _Alloc = std::allocator<long long int>]'
  198 |     vector<_Tp, _Alloc>::
      |     ^~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/vector.tcc:199:42: note:   no known conversion for argument 1 from 'std::vector<int>' to 'const std::vector<long long int>&'
  199 |     operator=(const vector<_Tp, _Alloc>& __x)
      |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
In file included from /usr/include/c++/10/vector:67,
                 from /usr/include/c++/10/functional:62,
                 from /usr/include/c++/10/pstl/glue_algorithm_defs.h:13,
                 from /usr/include/c++/10/algorithm:74,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from horses.cpp:4:
/usr/include/c++/10/bits/stl_vector.h:709:7: note: candidate: 'std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(std::vector<_Tp, _Alloc>&&) [with _Tp = long long int; _Alloc = std::allocator<long long int>]'
  709 |       operator=(vector&& __x) noexcept(_Alloc_traits::_S_nothrow_move())
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:709:26: note:   no known conversion for argument 1 from 'std::vector<int>' to 'std::vector<long long int>&&'
  709 |       operator=(vector&& __x) noexcept(_Alloc_traits::_S_nothrow_move())
      |                 ~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_vector.h:730:7: note: candidate: 'std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(std::initializer_list<_Tp>) [with _Tp = long long int; _Alloc = std::allocator<long long int>]'
  730 |       operator=(initializer_list<value_type> __l)
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:730:46: note:   no known conversion for argument 1 from 'std::vector<int>' to 'std::initializer_list<long long int>'
  730 |       operator=(initializer_list<value_type> __l)
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~