This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
#define int long long
typedef long long ll;
const int M = 2e6 + 5, MOD = 1e9+7;
struct point {int x, y, i;};
bool operator<(point a, point b) {if (a.x == b.x) return a.y < b.y; return a.x < b.x;}
vector<pair<int, int>> st = {{-1, -1}, {0, -1}, {1, -1}, {1, 0}, {1, 1}, {0, 1}, {-1, 1}, {-1, 0}};
signed main() {
ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
srand(time(0));
int n, t, ind = 0;
cin >> n >> t;
vector<int> ans;
map<int, int> ok;
vector<point> v(n);
for (auto&i:v) cin >> i.x >> i.y;
for (auto [x, y, i]:v) ok[x*2e9+y] = ++ind;
priority_queue<point> q;
q.push(*min_element(v.begin(), v.end()));
while (!q.empty()) {
ans.push_back(q.top());
auto [x, y, k] = q.top(); q.pop();
for (auto [i, j]:st) {
if (ok[(x+i)*2e9+(y+j)]) {
q.push({x+i, y+j, ok[(x+i)*2e9+(y+j)]});
ok[(x+i)*2e9+(y+j)] = 0;
}
}
}
if (ans.size() == n) {
cout << "YES" << endl;
for (int i:ans) cout << i << endl;
} else cout << "NO" << endl;
return 0;
}
/*
3 2
0 0
0 1
0 2
*/
Compilation message (stderr)
skyscrapers.cpp: In function 'int main()':
skyscrapers.cpp:27:30: error: no matching function for call to 'std::vector<long long int>::push_back(const value_type&)'
27 | ans.push_back(q.top());
| ^
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 skyscrapers.cpp:1:
/usr/include/c++/10/bits/stl_vector.h:1187:7: note: candidate: 'void std::vector<_Tp, _Alloc>::push_back(const value_type&) [with _Tp = long long int; _Alloc = std::allocator<long long int>; std::vector<_Tp, _Alloc>::value_type = long long int]'
1187 | push_back(const value_type& __x)
| ^~~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:1187:35: note: no known conversion for argument 1 from 'const value_type' {aka 'const point'} to 'const value_type&' {aka 'const long long int&'}
1187 | push_back(const value_type& __x)
| ~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_vector.h:1203:7: note: candidate: 'void std::vector<_Tp, _Alloc>::push_back(std::vector<_Tp, _Alloc>::value_type&&) [with _Tp = long long int; _Alloc = std::allocator<long long int>; std::vector<_Tp, _Alloc>::value_type = long long int]'
1203 | push_back(value_type&& __x)
| ^~~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:1203:30: note: no known conversion for argument 1 from 'const value_type' {aka 'const point'} to 'std::vector<long long int>::value_type&&' {aka 'long long int&&'}
1203 | push_back(value_type&& __x)
| ~~~~~~~~~~~~~^~~
skyscrapers.cpp:37:20: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
37 | if (ans.size() == n) {
| ~~~~~~~~~~~^~~~