#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
#include <bits/stdc++.h>
#define owo(i,a, b) for(auto i=(a);i<(b); ++i)
#define uwu(i,a, b) for(auto i=(a)-1; i>=(b); --i)
#define senpai push_back
#define ttgl pair<int, int>
#define ayaya cout<<"ayaya~"<<endl
using namespace std;
/*#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define ordered_set tree<ttgl, null_type,less<ttgl>, rb_tree_tag,tree_order_statistics_node_update>*/
using ll = long long;
using ld = long double;
const ll MOD = 1000000007;
const ll root = 62;
ll binpow(ll a,ll b){ll res=1;while(b){if(b&1)res=(res*a)%MOD;a=(a*a)%MOD;b>>=1;}return res;}
ll modInv(ll a){return binpow(a, MOD-2);}
const double PI = atan(1);
const double eps = 1e-10;
const int INF = 0x3f3f3f3f;
const int NINF = 0xc0c0c0c0;
const ll INFLL = 0x3f3f3f3f3f3f3f3f;
const ll NINFLL = 0xc0c0c0c0c0c0c0c0;
const int mxN = 30001;
const int magic = 50;
struct pt {
ll x, y;
pt(ll x = 0, ll y = 0) : x(x), y(y) {}
bool operator < (const pt &o) const {
return (x == o.x ? y < o.y : x < o.x);
}
pt operator - (const pt &o) const {
return pt(x - o.x, y - o.y);
}
};
ll cross(pt a, pt b) {
return a.x * b.y - a.y * b.x;
}
bool ccw(pt &a, pt &b, pt &c) {
return cross(a-b, c-b) <= 0;
}
vector<pt> tribe[mxN];
int ord[mxN];
int bck[mxN];
int ans[magic][magic];
bool ma[mxN];
int n, m, q;
pt x, y;
bool chk(pt &a, pt &b) {
if(ccw(a, x, y)) {
if(ccw(a, x, b) && ccw(b, y, a))return 1;
}else {
if(ccw(b, x, a) && ccw(a, y, b))return 1;
}
return 0;
}
int main() {
//freopen("file.in", "r", stdin);
//freopen("file.out", "w", stdout);
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
cin.tie(0)->sync_with_stdio(0);
scanf("%d %d\n", &n, &m);
int a, b, c;
owo(i, 0, n) {
scanf("%d %d %d\n", &a, &b, &c);
c--;
tribe[c].senpai({a, b});
}
iota(ord, ord+m, 0);
sort(ord, ord+m, [&](int o1, int o2) {
return tribe[o1].size() > tribe[o2].size();
});
scanf("%lld %lld %lld %lld\n", &x.x, &x.y, &y.x, &y.y);
owo(i, 0, m) {
bck[ord[i]] = i;
if(i < magic) {
ma[i] = true;
}
}
owo(i, 0, min(m, magic)) {
owo(j, 0, min(m, magic)) {
if(i==j)continue;
int t1 = ord[i];
int t2 = ord[j];
for(auto &k1: tribe[t1]) {
for(auto &k2: tribe[t2]) {
ans[i][j]+=chk(k1, k2);
/*if (ccw(k1, x, y)) ans[i][j] += (ccw(k1, x, k2) && ccw(k2, y, k1));
else ans[i][j] += (ccw(k2, x, k1) && ccw(k1, y, k2));*/
}
}
}
}
scanf("%d\n", &q);
while(q--) {
scanf("%d %d\n", &a, &b);
a--; b--;
if(ma[bck[a]] && ma[bck[b]]) {
printf("%d \n", ans[bck[a]][bck[b]]);
}else {
int res = 0;
for(auto &k1: tribe[a]) {
for(auto &k2: tribe[b]) {
res+=chk(k1, k2);
}
}
printf("%d \n", res);
}
}
return 0;
}
Compilation message
dragon2.cpp:2: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
2 | #pragma GCC optimization ("O3")
|
dragon2.cpp:3: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
3 | #pragma GCC optimization ("unroll-loops")
|
dragon2.cpp: In function 'int main()':
dragon2.cpp:65:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
65 | scanf("%d %d\n", &n, &m);
| ~~~~~^~~~~~~~~~~~~~~~~~~
dragon2.cpp:68:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
68 | scanf("%d %d %d\n", &a, &b, &c);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
dragon2.cpp:76:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
76 | scanf("%lld %lld %lld %lld\n", &x.x, &x.y, &y.x, &y.y);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
dragon2.cpp:97:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
97 | scanf("%d\n", &q);
| ~~~~~^~~~~~~~~~~~
dragon2.cpp:99:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
99 | scanf("%d %d\n", &a, &b);
| ~~~~~^~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
43 ms |
1280 KB |
Output is correct |
| 2 |
Correct |
65 ms |
1152 KB |
Output is correct |
| 3 |
Correct |
53 ms |
1132 KB |
Output is correct |
| 4 |
Correct |
48 ms |
1508 KB |
Output is correct |
| 5 |
Correct |
41 ms |
1636 KB |
Output is correct |
| 6 |
Correct |
3 ms |
1132 KB |
Output is correct |
| 7 |
Correct |
3 ms |
1132 KB |
Output is correct |
| 8 |
Correct |
24 ms |
1132 KB |
Output is correct |
| 9 |
Correct |
24 ms |
1144 KB |
Output is correct |
| 10 |
Correct |
24 ms |
1260 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3497 ms |
1952 KB |
Output is correct |
| 2 |
Execution timed out |
4081 ms |
2148 KB |
Time limit exceeded |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
43 ms |
1280 KB |
Output is correct |
| 2 |
Correct |
65 ms |
1152 KB |
Output is correct |
| 3 |
Correct |
53 ms |
1132 KB |
Output is correct |
| 4 |
Correct |
48 ms |
1508 KB |
Output is correct |
| 5 |
Correct |
41 ms |
1636 KB |
Output is correct |
| 6 |
Correct |
3 ms |
1132 KB |
Output is correct |
| 7 |
Correct |
3 ms |
1132 KB |
Output is correct |
| 8 |
Correct |
24 ms |
1132 KB |
Output is correct |
| 9 |
Correct |
24 ms |
1144 KB |
Output is correct |
| 10 |
Correct |
24 ms |
1260 KB |
Output is correct |
| 11 |
Correct |
3497 ms |
1952 KB |
Output is correct |
| 12 |
Execution timed out |
4081 ms |
2148 KB |
Time limit exceeded |
| 13 |
Halted |
0 ms |
0 KB |
- |
