Submission #969989

#	Time	Username	Problem	Language	Result	Execution time	Memory
969989		steveonalex	Circle selection (APIO18_circle_selection)	C++17	7 / 100	3072 ms	14280 KiB

circle_selection

#include <bits/stdc++.h>
 
using namespace std;
 
typedef long long ll;
typedef unsigned long long ull;
 
#define ALL(v) (v).begin(), (v).end()
#define MASK(i) (1LL << (i))
#define GETBIT(mask, i) (((mask) >> (i)) & 1)
 
// mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
mt19937_64 rng(1);
ll rngesus(ll l, ll r){return ((ull) rng()) % (r - l + 1) + l;}
 
ll max(ll a, ll b){return (a > b) ? a : b;}
ll min(ll a, ll b){return (a < b) ? a : b;}
 
ll LASTBIT(ll mask){return mask & (-mask);}
ll pop_cnt(ll mask){return __builtin_popcountll(mask);}
ll ctz(ll mask){return __builtin_ctzll(mask);}
ll clz(ll mask){return __builtin_clzll(mask);}
ll logOf(ll mask){return 63 - clz(mask);}
 
template <class T1, class T2>
    bool minimize(T1 &a, T2 b){
        if (a > b){a = b; return true;}
        return false;
    }
template <class T1, class T2>
    bool maximize(T1 &a, T2 b){
        if (a < b){a = b; return true;}
        return false;
    }
template <class T>
    void printArr(T& a, string separator = " ", string finish = "\n", ostream& out = cout){
        for(auto i: a) out << i << separator;
        out << finish;
    }
template <class T>
    void remove_dup(vector<T> &a){
        sort(ALL(a));
        a.resize(unique(ALL(a)) - a.begin());
    }

const int N = 3e5 + 69;
array<int, 3> a[N];
bool visited[N];
int ans[N];

ll sqr(ll x){return x * x;}
 
int main(void){
    ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
 
    int n; cin >> n;
    for(int i = 1; i<=n; ++i) {
        for(int j = 0; j < 3; ++j) cin >> a[i][j];
    }

    while(true){
        int ma = 0;
        for(int i = 1; i<=n; ++i) if (!visited[i])
            if (ma == 0 || a[ma][2] < a[i][2]) ma = i;
        if (ma == 0) break;
        for(int i = 1; i<=n; ++i) if (!visited[i]){
            if (sqr(a[i][0] - a[ma][0]) + sqr(a[i][1] - a[ma][1]) <= sqr(a[i][2] + a[ma][2])){
                visited[i] = 1;
                ans[i] = ma;
            }
        }
    }

    for(int i = 1; i<=n; ++i) cout << ans[i] << " "; cout << "\n";
    

    return 0;
}

Compilation message (stderr)

circle_selection.cpp: In function 'int main()':
circle_selection.cpp:74:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   74 |     for(int i = 1; i<=n; ++i) cout << ans[i] << " "; cout << "\n";
      |     ^~~
circle_selection.cpp:74:54: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   74 |     for(int i = 1; i<=n; ++i) cout << ans[i] << " "; cout << "\n";
      |                                                      ^~~~

• Subtask 1: 7 / 7
• Subtask 2: 0 / 12
• Subtask 3: 0 / 15
• Subtask 4: 0 / 23
• Subtask 5: 0 / 30
• Subtask 6: 0 / 13