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Submission #750831

# Submission time Handle Problem Language Result Execution time Memory
750831 2023-05-30T11:06:50 Z doowey Nicelines (RMI20_nicelines) C++14
84.1835 / 100
 68 ms 308 KB 
#include <bits/stdc++.h>
#include "nice_lines.h"

using namespace std;

typedef long double ld;
typedef pair<ld, ld> pdd;

#define fi first
#define se second
#define mp make_pair

const int X = (int)2e4 + 4;
const int B = X * 1ll * X;
const ld EPS = 1e-5;

bool on_line(ld x0, ld y0, ld x1, ld y1, ld x2, ld y2){
    return abs((x2 - x1) * (y1 - y0) - (y2 - y1) * (x1 - x0)) < EPS;
}

vector<int> aa, bb;
int nn;

void solve(int lef, int rig, ld la, ld ra){
    if(aa.size() == nn) return;
    if(la < 0.0){
        la = query(X, (ld)lef - 0.5);
    }
    if(ra < 0.0){
        ra = query(X, (ld)rig + 0.5);
    }
    if(lef == rig){
        ld ma = query(X, lef);
        if(on_line(lef - 0.5, la, lef, ma, rig + 0.5, ra)) return;
        int B = (lef % X + X) % X;
        if(B > (int)1e4) B = -(X-B);
        int A = (lef - B) / X;
        //cout << lef << " " << A << " " << B << "\n";
        aa.push_back(A);
        bb.push_back(B);
        return;
    }
    int mid = lef + (rig - lef) / 2;
    ld ma = query(X, (ld)mid + 0.5);
    if(on_line(lef - 0.5, la, mid + 0.5, ma, rig + 0.5, ra)) return;
    solve(lef, mid, la, ma);
    solve(mid + 1, rig, ma, ra);

}

void solve(int subtask_id, int N) {
    nn = N;
    /*
    printf("subtask_id = %d, N = %d\n", subtask_id, N);
    printf("query(0, 0) = %Lf\n", query(0, 0));
    printf("query(1, 1) = %Lf\n", query(1, 1));
    */
    solve(-B, B, -1.0, -1.0);
    the_lines_are(aa, bb);
}

Compilation message

nicelines.cpp: In function 'void solve(int, int, ld, ld)':
nicelines.cpp:25:18: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   25 |     if(aa.size() == nn) return;
      |        ~~~~~~~~~~^~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 2 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 208 KB Output is correct
2 Correct 2 ms 296 KB Output is correct
3 Correct 4 ms 208 KB Output is correct
4 Correct 2 ms 208 KB Output is correct

Subtask #3
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 208 KB Output is correct
2 Correct 7 ms 308 KB Output is correct
3 Correct 3 ms 300 KB Output is correct
4 Correct 4 ms 208 KB Output is correct

Subtask #4
13.1800375074 / 19.0

# Verdict Execution time Memory Grader output
1 Partially correct 53 ms 304 KB Output is partially correct
2 Partially correct 58 ms 292 KB Output is partially correct
3 Partially correct 58 ms 292 KB Output is partially correct
4 Partially correct 61 ms 296 KB Output is partially correct

Subtask #5
21.2739216496 / 23.0

# Verdict Execution time Memory Grader output
1 Partially correct 17 ms 208 KB Output is partially correct
2 Partially correct 17 ms 208 KB Output is partially correct
3 Partially correct 22 ms 288 KB Output is partially correct
4 Partially correct 18 ms 208 KB Output is partially correct

Subtask #6
18.7295269842 / 27.0

# Verdict Execution time Memory Grader output
1 Partially correct 53 ms 304 KB Output is partially correct
2 Partially correct 58 ms 292 KB Output is partially correct
3 Partially correct 58 ms 292 KB Output is partially correct
4 Partially correct 61 ms 296 KB Output is partially correct
5 Partially correct 17 ms 208 KB Output is partially correct
6 Partially correct 17 ms 208 KB Output is partially correct
7 Partially correct 22 ms 288 KB Output is partially correct
8 Partially correct 18 ms 208 KB Output is partially correct
9 Partially correct 64 ms 288 KB Output is partially correct
10 Partially correct 44 ms 296 KB Output is partially correct
11 Partially correct 56 ms 208 KB Output is partially correct
12 Partially correct 68 ms 292 KB Output is partially correct