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Submission #230033

# Submission time Handle Problem Language Result Execution time Memory
230033 2020-05-07T20:26:18 Z infinite_iq Mobile (BOI12_mobile) C++14
70 / 100
 1000 ms 31736 KB 
#define fast ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0)
#include <bits/stdc++.h>
using namespace std;
#define sqr 547
#define mp make_pair
#define mid (l+r)/2
#define pb push_back
#define ppb pop_back
#define fi first
#define se second
#define lb lower_bound
#define ub upper_bound
#define ins insert
#define era erase
#define C continue
#define mem(dp,i) memset(dp,i,sizeof(dp))
#define mset multiset
#define all(x) x.begin(), x.end()
typedef long long ll;
typedef short int si;
typedef long double ld;
typedef pair<int,int> pi;
typedef pair<ll,ll> pll;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<pi> vpi;
typedef vector<pll> vpll;
const ll inf=1e18;
const ll mod=1e9+7;
const ld pai=acos(-1);
ll N , En ;
pll A [1000009] ;
bool Check ( double Mid ) {
  		double Mx = 0 ;
        for ( int i = 0 ; i < N ; i ++ ) {
                double Len = sqrt ( Mid * Mid  - A [i] .se * A [i] .se ) ;
                double L = A [i].fi - Len , R = A [i].fi + Len ;
				if ( L <= Mx ) Mx = max ( Mx , R ) ; 
        }
        return ( Mx >= En )  ;
}
int main () {
        cin >> N >> En ;
        for ( int i = 0 ; i < N ; i ++ ) cin >> A [i] .fi >> A [i] .se ;
        double L = 1 , R = 5e8 ;
        while ( R - L > 0.001 ) {
                double Mid = ( L + R ) / 2.0 ;
                if ( Check ( Mid ) ) R = Mid ;
                else L = Mid ;
        }
        cout << fixed << setprecision (4) << L << endl ;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 4 ms 256 KB Output is correct
3 Correct 4 ms 256 KB Output is correct
4 Correct 5 ms 256 KB Output is correct

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 256 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 384 KB Output is correct
2 Correct 6 ms 384 KB Output is correct
3 Correct 6 ms 384 KB Output is correct
4 Correct 7 ms 384 KB Output is correct

Subtask #4
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 384 KB Output is correct
2 Correct 10 ms 512 KB Output is correct
3 Correct 8 ms 384 KB Output is correct
4 Correct 11 ms 512 KB Output is correct

Subtask #5
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 512 KB Output is correct
2 Correct 9 ms 512 KB Output is correct
3 Correct 9 ms 512 KB Output is correct
4 Correct 11 ms 512 KB Output is correct

Subtask #6
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 384 KB Output is correct
2 Correct 9 ms 384 KB Output is correct
3 Correct 8 ms 384 KB Output is correct
4 Correct 13 ms 384 KB Output is correct
5 Correct 9 ms 384 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 84 ms 1528 KB Output is correct
2 Correct 84 ms 2552 KB Output is correct
3 Correct 55 ms 1784 KB Output is correct
4 Correct 102 ms 2680 KB Output is correct
5 Correct 46 ms 1532 KB Output is correct

Subtask #8
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 80 ms 1528 KB Output is correct
2 Correct 81 ms 2296 KB Output is correct
3 Correct 98 ms 2680 KB Output is correct
4 Correct 106 ms 2808 KB Output is correct
5 Correct 127 ms 3192 KB Output is correct

Subtask #9
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 69 ms 1656 KB Output is correct
2 Correct 90 ms 1656 KB Output is correct
3 Correct 85 ms 1696 KB Output is correct
4 Correct 159 ms 1912 KB Output is correct
5 Correct 95 ms 2680 KB Output is correct

Subtask #10
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 115 ms 1912 KB Output is correct
2 Correct 108 ms 1912 KB Output is correct
3 Correct 94 ms 1912 KB Output is correct
4 Correct 157 ms 1912 KB Output is correct
5 Correct 120 ms 3204 KB Output is correct

Subtask #11
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 116 ms 1912 KB Output is correct
2 Correct 109 ms 1912 KB Output is correct
3 Correct 96 ms 1912 KB Output is correct
4 Correct 158 ms 1912 KB Output is correct
5 Correct 127 ms 3192 KB Output is correct

Subtask #12
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 413 ms 8184 KB Output is correct
2 Correct 560 ms 15864 KB Output is correct
3 Correct 546 ms 15352 KB Output is correct
4 Correct 768 ms 17784 KB Output is correct
5 Correct 602 ms 14968 KB Output is correct

Subtask #13
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 580 ms 8256 KB Output is correct
2 Correct 616 ms 14844 KB Output is correct
3 Correct 488 ms 14036 KB Output is correct
4 Correct 746 ms 17792 KB Output is correct
5 Correct 638 ms 15608 KB Output is correct

Subtask #14
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 479 ms 9720 KB Output is correct
2 Correct 681 ms 19296 KB Output is correct
3 Correct 641 ms 18476 KB Output is correct
4 Correct 960 ms 21712 KB Output is correct
5 Correct 734 ms 17768 KB Output is correct

Subtask #15
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 693 ms 9848 KB Output is correct
2 Correct 737 ms 17784 KB Output is correct
3 Correct 586 ms 16632 KB Output is correct
4 Correct 931 ms 21624 KB Output is correct
5 Correct 764 ms 18588 KB Output is correct

Subtask #16
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 553 ms 11332 KB Output is correct
2 Correct 817 ms 22264 KB Output is correct
3 Correct 767 ms 21576 KB Output is correct
4 Execution timed out 1070 ms 24824 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #17
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 826 ms 11492 KB Output is correct
2 Correct 843 ms 20672 KB Output is correct
3 Correct 701 ms 19704 KB Output is correct
4 Execution timed out 1074 ms 24824 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #18
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 658 ms 13048 KB Output is correct
2 Correct 905 ms 25464 KB Output is correct
3 Correct 906 ms 24612 KB Output is correct
4 Execution timed out 1095 ms 28536 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #19
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 941 ms 13148 KB Output is correct
2 Execution timed out 1012 ms 23416 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #20
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 802 ms 16376 KB Output is correct
2 Execution timed out 1058 ms 31736 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #21
0 / 5.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1091 ms 16124 KB Time limit exceeded
2 Halted 0 ms 0 KB -