#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define rep(a,b) for (int a = 0; a < (b); ++a)
#define pb push_back
#define all(t) t.begin(), t.end()
struct Pole
{
int y=-1, x=-1;
};
struct Element
{
int val, idx;
bool operator < (const Element &element) const
{
return val < element.val;
}
};
const int max_N = 2e5+5;
int wysokosc = 0, szerokosc = 0, n = 0, q = 0, y_1 = 0, y_2 = 0, x_1 = 0, x_2 = 0;
Pole P[max_N];
int nextt[max_N];
map<int,set<Element>> S;
int main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
cin >> wysokosc >> szerokosc >> n;
rep(i,n) cin >> P[i].y >> P[i].x;
rep(i,n) S[P[i].y].insert({P[i].x,i});
//for (auto it = S.begin(); it != S.end(); ++it) sort(all(it->second));
rep(i,n)
{
int y = P[i].y, x = P[i].x;
if (auto it = S.find(y+1) == S.end())
{
nextt[i] = -1;
continue;
}
auto it = S[y+1].lower_bound({x,-1});
if (it != S[y+1].end()) nextt[i] = it->idx;
else nextt[i] = -1;
}
//rep(i,n) cout << nextt[i] << endl;
cin >> q;
rep(z,q)
{
cin >> y_1 >> x_1 >> y_2 >> x_2;
if (y_1 > y_2 or x_1 > x_2)
{
cout << "No" << '\n';
continue;
}
if (y_1 == y_2)
{
cout << "Yes" << '\n';
continue;
}
if (auto it = S.find(y_1) == S.end())
{
else cout << "No" << '\n';
continue;
}
if (auto it = S[y_1].lower_bound({x_1,-1}) == S[y_1].end())
{
else cout << "No" << '\n';
continue;
}
int akt = (S[y_1].lower_bound({x_1,-1}))->idx, y = P[akt].y, x = P[akt].x;
bool czy_OK = false;
while(y < y_2)
{
++y;
if (y > wysokosc) break;
if (y == y_2 and x <= x_2)
{
czy_OK = true;
break;
}
if (nextt[akt] == -1) break;
akt = nextt[akt], x = P[akt].x;
}
if (czy_OK == true) cout << "Yes" << '\n';
else cout << "No" << '\n';
}
return 0;
}
Compilation message
trampoline.cpp: In function 'int main()':
trampoline.cpp:41:18: warning: unused variable 'it' [-Wunused-variable]
41 | if (auto it = S.find(y+1) == S.end())
| ^~
trampoline.cpp:67:13: error: expected '}' before 'else'
67 | else cout << "No" << '\n';
| ^~~~
trampoline.cpp:66:9: note: to match this '{'
66 | {
| ^
trampoline.cpp:65:18: warning: unused variable 'it' [-Wunused-variable]
65 | if (auto it = S.find(y_1) == S.end())
| ^~
trampoline.cpp:72:13: error: expected '}' before 'else'
72 | else cout << "No" << '\n';
| ^~~~
trampoline.cpp:71:9: note: to match this '{'
71 | {
| ^
trampoline.cpp:70:18: warning: unused variable 'it' [-Wunused-variable]
70 | if (auto it = S[y_1].lower_bound({x_1,-1}) == S[y_1].end())
| ^~
trampoline.cpp:73:13: error: continue statement not within a loop
73 | continue;
| ^~~~~~~~
trampoline.cpp: At global scope:
trampoline.cpp:77:9: error: expected unqualified-id before 'while'
77 | while(y < y_2)
| ^~~~~
trampoline.cpp:89:9: error: expected unqualified-id before 'if'
89 | if (czy_OK == true) cout << "Yes" << '\n';
| ^~
trampoline.cpp:90:9: error: expected unqualified-id before 'else'
90 | else cout << "No" << '\n';
| ^~~~
trampoline.cpp:91:5: error: expected declaration before '}' token
91 | }
| ^
trampoline.cpp:92:5: error: expected unqualified-id before 'return'
92 | return 0;
| ^~~~~~
trampoline.cpp:93:1: error: expected declaration before '}' token
93 | }
| ^
