#include <bits/stdc++.h>
using namespace std;
using namespace std::numbers;
#define pii pair<int, int>
int main(){
ios_base::sync_with_stdio(false); cin.tie(NULL);
int S, P, G, N;
cin >> S >> P >> G >> N;
G += S + P;
set<pii> pts;
set<double> angles;
vector<pair<set<pii>::iterator, set<double>::iterator>> add;
int ctrl = 0, ctrt = 0, t = 0;
while(N--){
char c;
cin >> c;
if(c == 'A'){
int x, y, z, divide;
cin >> x >> y >> z;
z += x + y;
x = x * G - S * z;
y = y * G - P * z;
divide = gcd(x, y);
pii v = {x?x / divide:0, y?y / divide:0};
if(pts.find({-v.first, -v.second}) != pts.end()) ctrl++;
auto it2 = pts.insert(v).first;
auto it = angles.insert(atan2(v.second, v.first)).first;
if(it == angles.begin())
if(*angles.rbegin() - *it > M_PI) ctrt=1;
else
if(*it - *--it > M_PI) ctrt=1;
if(it == angles.end())
if(*it - *angles.begin() > M_PI) ctrt=1;
else
if(*++it - *it > M_PI) ctrt=1;
add.push_back({it2, it});
}
else{
int r, x, y;
cin >> r;
auto it2 = add[r-1].first;
auto it = add[r-1].second;
if(pts.find({-(*it2).first, -(*it2).second}) != pts.end()) ctrl--;
pts.erase(it2);
if(it == angles.begin())
if(*angles.rbegin() - *it > M_PI) ctrt=0;
else
if(*it - *--it > M_PI) ctrt=0;
if(it == angles.end())
if(*it - *angles.begin() > M_PI) ctrt=0;
else
if(*++it - *it > M_PI) ctrt=0;
angles.erase(it);
}
if(pts.find({0, 0}) != pts.end())
cout << "1 ";
else if(ctrl)
cout << "2 ";
else if(ctrt)
cout << "3 ";
else
cout << "0 ";
}
}
Compilation message
Mixture.cpp:3:22: error: 'numbers' is not a namespace-name
3 | using namespace std::numbers;
| ^~~~~~~
Mixture.cpp: In function 'int main()':
Mixture.cpp:30:15: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else]
30 | if(it == angles.begin())
| ^
Mixture.cpp:34:15: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else]
34 | if(it == angles.end())
| ^
Mixture.cpp:47:15: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else]
47 | if(it == angles.begin())
| ^
Mixture.cpp:51:15: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else]
51 | if(it == angles.end())
| ^
Mixture.cpp:41:20: warning: unused variable 'x' [-Wunused-variable]
41 | int r, x, y;
| ^
Mixture.cpp:41:23: warning: unused variable 'y' [-Wunused-variable]
41 | int r, x, y;
| ^
Mixture.cpp:15:29: warning: unused variable 't' [-Wunused-variable]
15 | int ctrl = 0, ctrt = 0, t = 0;
| ^
