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Submission #535626

# Submission time Handle Problem Language Result Execution time Memory
535626 2022-03-10T17:00:19 Z __Variatto Park (BOI16_park) C++17
100 / 100
 2299 ms 740 KB 
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define fi first
#define se second
#define ll long long
const int MAX=2e3+10;
int fau[MAX];
int Find(int a){
    if(fau[a]==a)
        return a;
    return fau[a]=Find(fau[a]);
}
void Union(int a, int b){
    fau[Find(a)]=fau[Find(b)];
}
int n, m, w, h;
ll x[MAX], y[MAX], r[MAX];
bool spr(int e1, int e2, int pro){
    for(int i=1; i<=n+4; i++)
        fau[i]=i;
    for(int i=1; i<=n; i++){
        if(y[i]-r[i]<2*pro) Union(i, n+1);
        if(w-(x[i]+r[i])<2*pro) Union(i, n+2);
        if(h-(y[i]+r[i])<2*pro) Union(i, n+3);
        if(x[i]-r[i]<2*pro) Union(i, n+4);
    }
    for(int i=1; i<=n; i++){
        for(int j=1; j<=n; j++){
            ll odl=(x[i]-x[j])*(x[i]-x[j])+(y[i]-y[j])*(y[i]-y[j]);
            if(odl<(ll)(2LL*pro+r[i]+r[j])*(ll)(2LL*pro+r[i]+r[j]))
                Union(i, j);
        }
    }
    if(e1==1&&e2==2) return (Find(n+1)!=Find(n+4)&&Find(n+1)!=Find(n+2)&&Find(n+1)!=Find(n+3));
    if(e1==1&&e2==3) return(Find(n+1)!=Find(n+4)&&Find(n+4)!=Find(n+2)&&Find(n+1)!=Find(n+3)&&Find(n+2)!=Find(n+3));
    if(e1==1&&e2==4) return(Find(n+1)!=Find(n+4)&&Find(n+3)!=Find(n+4)&&Find(n+2)!=Find(n+4));
    if(e1==2&&e2==3) return (Find(n+1)!=Find(n+2)&&Find(n+3)!=Find(n+2)&&Find(n+2)!=Find(n+4));
    if(e1==2&&e2==4) return(Find(n+1)!=Find(n+3)&&Find(n+4)!=Find(n+2)&&Find(n+1)!=Find(n+2)&&Find(n+4)!=Find(n+3));
    if(e1==3&&e2==4) return (Find(n+3)!=Find(n+4)&&Find(n+3)!=Find(n+1)&&Find(n+2)!=Find(n+3));
}
int bin(int x, int y){
    int pocz=0, kon=1e9/4+1, sr, wyn=0;
    while(pocz<=kon){
        sr=(pocz+kon)/2;
        if(spr(x, y, sr))
            pocz=sr+1, wyn=sr;
        else
            kon=sr-1;
    }
    return wyn;
}
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0), cout.tie(0);
    cin>>n>>m>>w>>h;
    for(int i=1; i<=n; i++){
        cin>>x[i]>>y[i]>>r[i];
    }
    int maxi12=bin(1, 2), maxi13=bin(1, 3), maxi14=bin(1, 4), maxi23=bin(2, 3), maxi24=bin(2, 4), maxi34=bin(3, 4);
    while(m--){
        int pro, e;
        cin>>pro>>e;
        if(e==1){
            cout<<1;
            if(maxi12>=pro) cout<<2;
            if(maxi13>=pro) cout<<3;
            if(maxi14>=pro) cout<<4;
        }
        if(e==2){
            if(maxi12>=pro) cout<<1;
            cout<<2;
            if(maxi23>=pro) cout<<3;
            if(maxi24>=pro) cout<<4;
        }
        if(e==3){
            if(maxi13>=pro) cout<<1;
            if(maxi23>=pro) cout<<2;
            cout<<3;
            if(maxi34>=pro) cout<<4;
        }
        if(e==4){
            if(maxi14>=pro) cout<<1;
            if(maxi24>=pro) cout<<2;
            if(maxi34>=pro) cout<<3;
            cout<<4;
        }
        cout<<"\n";
    }
}

Compilation message

park.cpp: In function 'bool spr(int, int, int)':
park.cpp:41:1: warning: control reaches end of non-void function [-Wreturn-type]
   41 | }
      | ^

Subtask #1
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 948 ms 356 KB Output is correct
2 Correct 962 ms 352 KB Output is correct
3 Correct 947 ms 340 KB Output is correct
4 Correct 942 ms 356 KB Output is correct
5 Correct 945 ms 352 KB Output is correct
6 Correct 939 ms 356 KB Output is correct
7 Correct 2246 ms 360 KB Output is correct
8 Correct 2245 ms 360 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct

Subtask #2
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 580 KB Output is correct
2 Correct 39 ms 588 KB Output is correct
3 Correct 40 ms 624 KB Output is correct
4 Correct 39 ms 588 KB Output is correct
5 Correct 38 ms 652 KB Output is correct
6 Correct 55 ms 712 KB Output is correct
7 Correct 26 ms 544 KB Output is correct
8 Correct 28 ms 592 KB Output is correct

Subtask #3
42.0 / 42.0

# Verdict Execution time Memory Grader output
1 Correct 948 ms 356 KB Output is correct
2 Correct 962 ms 352 KB Output is correct
3 Correct 947 ms 340 KB Output is correct
4 Correct 942 ms 356 KB Output is correct
5 Correct 945 ms 352 KB Output is correct
6 Correct 939 ms 356 KB Output is correct
7 Correct 2246 ms 360 KB Output is correct
8 Correct 2245 ms 360 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 41 ms 580 KB Output is correct
12 Correct 39 ms 588 KB Output is correct
13 Correct 40 ms 624 KB Output is correct
14 Correct 39 ms 588 KB Output is correct
15 Correct 38 ms 652 KB Output is correct
16 Correct 55 ms 712 KB Output is correct
17 Correct 26 ms 544 KB Output is correct
18 Correct 28 ms 592 KB Output is correct
19 Correct 972 ms 736 KB Output is correct
20 Correct 1057 ms 716 KB Output is correct
21 Correct 974 ms 736 KB Output is correct
22 Correct 1065 ms 624 KB Output is correct
23 Correct 961 ms 616 KB Output is correct
24 Correct 2299 ms 740 KB Output is correct