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Submission #138853

# Submission time Handle Problem Language Result Execution time Memory
138853 2019-07-30T14:28:10 Z RiscadoA Detecting Molecules (IOI16_molecules) C++14
0 / 100
 3 ms 376 KB 
#include "molecules.h"
#include <bits/stdc++.h>

const int MAX_N = 200000;
int N;
std::pair<int, int> W[MAX_N];

std::vector<int> find_subset(int l, int u, std::vector<int> w_in)
{
        N = (int)w_in.size();
        for (int i = 0; i < N; ++i)
                W[i] = std::make_pair(w_in[i], i);
        std::sort(std::begin(W), std::begin(W) + N);
        
        int best_x = -1, best_y = -1, best_d = MAX_N;
        for (int x = 0, y = 0, s = 0, d; x < N && y < N;) {
                if (s > l) {
                        s -= W[x].first;
                        ++x;
                }
                else {
                        ++y;
                        s += W[y].first;
                }
                
                d = s - l;
                if (d > 0 && d < best_d) {
                        best_x = x;
                        best_y = y;
                        best_d = d;
                }       
        }

        if (best_x == -1 || best_y == -1 || best_d + l > u)
                return {};

        std::vector<int> ret;
        for (int x = best_x; x < best_y; ++x)
                ret.push_back(W[x].second);
        return ret;
}

Subtask #1
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB OK (n = 1, answer = NO)
2 Correct 2 ms 256 KB OK (n = 1, answer = NO)
3 Incorrect 3 ms 256 KB Contestant can not find answer, jury can
4 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 252 KB OK (n = 12, answer = YES)
2 Correct 2 ms 256 KB OK (n = 12, answer = YES)
3 Correct 2 ms 376 KB OK (n = 12, answer = NO)
4 Correct 2 ms 376 KB OK (n = 12, answer = NO)
5 Incorrect 2 ms 376 KB Contestant can not find answer, jury can
6 Halted 0 ms 0 KB -

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB OK (n = 1, answer = NO)
2 Correct 2 ms 256 KB OK (n = 1, answer = NO)
3 Incorrect 3 ms 256 KB Contestant can not find answer, jury can
4 Halted 0 ms 0 KB -

Subtask #4
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB OK (n = 1, answer = NO)
2 Correct 2 ms 256 KB OK (n = 1, answer = NO)
3 Incorrect 3 ms 256 KB Contestant can not find answer, jury can
4 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB OK (n = 1, answer = NO)
2 Correct 2 ms 256 KB OK (n = 1, answer = NO)
3 Incorrect 3 ms 256 KB Contestant can not find answer, jury can
4 Halted 0 ms 0 KB -

Subtask #6
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB OK (n = 1, answer = NO)
2 Correct 2 ms 256 KB OK (n = 1, answer = NO)
3 Incorrect 3 ms 256 KB Contestant can not find answer, jury can
4 Halted 0 ms 0 KB -