oj.uz

Submission #493537

# Submission time Handle Problem Language Result Execution time Memory
493537 2021-12-11T22:07:45 Z imaginary_unit Mobile (BOI12_mobile) C++17
0 / 100
 1000 ms 16312 KB 
#include<bits/stdc++.h>
#define ll long long
#define fi first
#define se second
using namespace std;

ll n, len, x[1'000'000], y[1'000'000];

int main()
{
    scanf("%I64d %I64d", &n, &len);
    for(int i=0; i<n; i++){
        scanf("%I64d %I64d", &x[i], &y[i]);
    }
    double l=0, r=1e-9;
    while(r-l>1e-3){
        double m=(l+r)/2, cur=0;
        for(int i=0; i<n; i++){
            double delta=sqrt(m*m-y[i]*y[i]), a=x[i]-delta, b=x[i]+delta;
            if(a<=cur){
                cur=max(cur, b);
            }
        }
        if(cur>=len){
            r=m;
        }
        else{
            l=m;
        }
    }
    cout << fixed << setprecision(4) << l;
    return 0;
}

Compilation message

mobile.cpp: In function 'int main()':
mobile.cpp:11:16: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'long long int*' [-Wformat=]
   11 |     scanf("%I64d %I64d", &n, &len);
      |            ~~~~^         ~~
      |                |         |
      |                int*      long long int*
      |            %I64lld
mobile.cpp:11:22: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'long long int*' [-Wformat=]
   11 |     scanf("%I64d %I64d", &n, &len);
      |                  ~~~~^       ~~~~
      |                      |       |
      |                      int*    long long int*
      |                  %I64lld
mobile.cpp:13:20: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'long long int*' [-Wformat=]
   13 |         scanf("%I64d %I64d", &x[i], &y[i]);
      |                ~~~~^         ~~~~~
      |                    |         |
      |                    int*      long long int*
      |                %I64lld
mobile.cpp:13:26: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'long long int*' [-Wformat=]
   13 |         scanf("%I64d %I64d", &x[i], &y[i]);
      |                      ~~~~^          ~~~~~
      |                          |          |
      |                          int*       long long int*
      |                      %I64lld
mobile.cpp:11:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |     scanf("%I64d %I64d", &n, &len);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
mobile.cpp:13:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |         scanf("%I64d %I64d", &x[i], &y[i]);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 332 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 400 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 332 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 332 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 56 ms 1576 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 61 ms 1536 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 62 ms 1752 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 110 ms 2052 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #11
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 109 ms 2060 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #12
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 343 ms 8352 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #13
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 587 ms 8680 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #14
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 389 ms 9876 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #15
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 638 ms 10184 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #16
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 472 ms 11480 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #17
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 726 ms 12036 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #18
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 526 ms 13052 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #19
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 851 ms 13220 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #20
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 684 ms 16304 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #21
0 / 5.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1046 ms 16312 KB Time limit exceeded
2 Halted 0 ms 0 KB -