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Submission #328805

# Submission time Handle Problem Language Result Execution time Memory
328805 2020-11-18T06:27:54 Z ryangohca Snail (NOI18_snail) C++17
37 / 100
 6 ms 768 KB 
#include <bits/stdc++.h>
#define int long long
using namespace std;
vector<int> changes;
main() {
    int h, n; cin >> h >> n;
    for (int i = 0; i < n*2; i++){
        if (i >= n){
            changes.push_back(changes[i-n]);
        } else {
            int g; cin >> g;
            changes.push_back(g);
        }
    }
    int s = 0;
    for (int i = 0; i < n*2; i++){
        s += changes[i];
        s = max(s, 0ll);
        if (s >= h){
            cout << i/n << ' ' << i%n << '\n';
            return 0;
        }
    }
    s = accumulate(changes.begin(), changes.end(), 0ll);
    if (s <= 0) {
        cout << "-1 -1\n";
        return 0;
    } else {
        int d = h/s * 2;
        int climbed = d/2*s;
        if (climbed >= h){
            cout << d - 1 << ' ' << n - 1 << "\n";
            return 0;
        }
        for (int i = 0; i < n*2; i++){
            if (i == n) d++;
            climbed += changes[i];
            if (climbed >= h){
                cout << d << ' ' << i % n << '\n';
                return 0;
            }
        }
    }
}

Compilation message

snail.cpp:5:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    5 | main() {
      |      ^

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 0 ms 364 KB Output is correct
7 Correct 1 ms 384 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 2 ms 748 KB Output is correct
6 Correct 2 ms 748 KB Output is correct

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 748 KB Output is correct
2 Incorrect 1 ms 364 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 748 KB Output is correct
2 Correct 2 ms 748 KB Output is correct
3 Correct 6 ms 748 KB Output is correct
4 Correct 5 ms 768 KB Output is correct
5 Correct 5 ms 748 KB Output is correct
6 Correct 4 ms 748 KB Output is correct

Subtask #5
0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 0 ms 364 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 0 ms 364 KB Output is correct
11 Correct 0 ms 364 KB Output is correct
12 Correct 2 ms 748 KB Output is correct
13 Correct 2 ms 748 KB Output is correct
14 Correct 2 ms 748 KB Output is correct
15 Incorrect 1 ms 364 KB Output isn't correct
16 Halted 0 ms 0 KB -