#include <bits/stdc++.h>
using namespace std ;
typedef long long ll ;
#define ii pair<ll,ll>
#define fi first
#define se second
#define vi vector<int>
#define vii vector<ii>
inline ll sqr(ll x) { return (ll)x*(ll)x ;}
// define 0 = up , 1 = dw , 2 = lft , 3 = right
int n , m , par[2010] , qr[100005] ;
ll w , h ;
ll sz[100005] , lim[10][10] ;
ll rd[2005] ;
ii coor[2005] ;
int find_root(int x){
if(par[x] == x) return x ;
return par[x] = find_root(par[x]) ;
}
ll dist(ii a , ii b){
return sqr(a.fi - b.fi) + sqr(a.se - b.se) ;
}
bool chk(int x , int y , ll k ){
// printf("%d %d %lld :: \n" , x , y , k ) ;
for(int i=0;i<n+4;i++) par[i] = i ;
for(int i=0;i<n;i++){
int pr = find_root(i) ;
if(coor[i].se - rd[i] - 2*k < 0) if(find_root(n) != pr) par[find_root(n)] = pr ;
if(coor[i].se + rd[i] + 2*k > h) if(find_root(n + 1) != pr) par[find_root(n+1)] = pr ;
if(coor[i].fi - rd[i] - 2*k < 0) if(find_root(n + 2) != pr) par[find_root(n+2)] = pr ;
if(coor[i].fi + rd[i] + 2*k > w) if(find_root(n + 3) != pr) par[find_root(n+3)] = pr ;
for(int j=i+1;j<n;j++){
if(dist(coor[i] , coor[j]) < sqr(rd[i] + rd[j] + 2*k) ) {
if(find_root(j) != pr) par[find_root(j)] = pr ;
// printf("1 %d %d %lld %lld\n" , i , j , dist(coor[i] , coor[j]) , sqr(rd[i] + rd[j] + 2*k)) ;
}
}
}
int p0 = find_root(n) , p1 = find_root(n+1) , p2 = find_root(n+2) , p3 = find_root(n+3) ;
// printf("%d %d %d %d : %d %d %lld\n", p0 , p1 , p2 , p3 , x ,y ,k );
if(y == 1){
if(p0 == p2) return 0 ;
if(x == 3 && ( p0 == p1 || p2 == p3 ) ) return 0 ;
if(x == 2 && (p0 == p1) ) return 0 ;
if(x == 4 && (p2 == p3) ) return 0;
}
else if(y == 2){
if(p0 == p3) return 0 ;
if(x == 4 && ( p0 == p1 || p2 == p3 ) ) return 0 ;
if(x == 1 && (p0 == p1) ) return 0 ;
if(x == 3 && (p2 == p3) ) return 0;
}
else if(y == 3){
if(p1 == p3) return 0 ;
if(x == 1 && ( p0 == p1 || p2 == p3 ) ) return 0 ;
if(x == 4 && (p0 == p1) ) return 0 ;
if(x == 2 && (p2 == p3) ) return 0;
}
else{
if(p1 == p2) return 0 ;
if(x == 2 && ( p0 == p1 || p2 == p3 ) ) return 0 ;
if(x == 3 && ( p0 == p1 ) ) return 0 ;
if(x == 1 && ( p2 == p3 ) ) return 0;
}
return 1 ;
}
int main(){
// freopen("in.txt" , "r" ,stdin) ;
// freopen("out.txt" , "w" , stdout ) ;
scanf("%d%d%lld%lld" , &n,&m,&w,&h) ;
int a , b , c ;
for(int i=0;i<n;i++) {
scanf("%d%d%d",&a,&b,&c) ;
coor[i] = {a,b} ;
rd[i] = c ;
}
ll mx = 0 ;
for(int i=0;i<m;i++){
scanf("%d%d",&a,&b) ;
qr[i] = b ;
sz[i] = a ;
mx = max(mx , (ll)a) ;
}
ll f , l , mid ;
for(int i=1;i<=4;i++){
lim[i][i] = mx ;
for(int j=i+1;j<=4;j++){
f = 0 , l = mx ;
while(f <= l){
mid = (f+l)/2 ;
if(chk(i,j,mid)){
lim[i][j] = mid ;
f = mid + 1 ;
}
else l = mid - 1 ;
}
lim[j][i] = lim[i][j] ;
}
}
for(int i=0;i<m;i++){
b = qr[i] ;
for(int j=1;j<=4;j++){
if(lim[b][j] >= sz[i]) printf("%d",j) ;
}
printf("\n");
}
}
Compilation message
park.cpp: In function 'int main()':
park.cpp:75:38: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d%lld%lld" , &n,&m,&w,&h) ;
^
park.cpp:78:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d%d",&a,&b,&c) ;
^
park.cpp:84:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d",&a,&b) ;
^
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
586 ms |
3248 KB |
Output is correct |
| 2 |
Correct |
589 ms |
3248 KB |
Output is correct |
| 3 |
Correct |
623 ms |
3248 KB |
Output is correct |
| 4 |
Correct |
623 ms |
3248 KB |
Output is correct |
| 5 |
Correct |
619 ms |
3248 KB |
Output is correct |
| 6 |
Incorrect |
629 ms |
3248 KB |
Output isn't correct |
| 7 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
53 ms |
3248 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
586 ms |
3248 KB |
Output is correct |
| 2 |
Correct |
589 ms |
3248 KB |
Output is correct |
| 3 |
Correct |
623 ms |
3248 KB |
Output is correct |
| 4 |
Correct |
623 ms |
3248 KB |
Output is correct |
| 5 |
Correct |
619 ms |
3248 KB |
Output is correct |
| 6 |
Incorrect |
629 ms |
3248 KB |
Output isn't correct |
| 7 |
Halted |
0 ms |
0 KB |
- |
