Submission #1114064

#	Time	Username	Problem	Language	Result	Execution time	Memory
1114064		vjudge1	Nice sequence (IZhO18_sequence)	C++17	6 / 100	1 ms	512 KiB

sequence

#include <bits/stdc++.h>

using i64 = long long;

#ifdef DEBUG 
    #include "/home/ahmetalp/Desktop/Workplace/debug.h"
#else
    #define debug(...) void(23)
#endif

void solve() {
    int N, M;
    std::cin >> N >> M;

    bool swapped = false;
    if (N < M) {
        swapped = true;
        std::swap(N, M);
    }

    if (N == M) {
        std::vector<int> p(N - 1);
        for (int i = 0; i < N - 1; ++i) {
            p[i] = 1;
        }
        std::cout << p.size() << '\n';
        for (int i = 0; i < N - 1; ++i) {
            std::cout << p[i] << " \n"[i == N - 2];
        }
    } else if (N == M + 1) {
        std::vector<int> p;
        if (N == 2) { // 2 1
            p = {1};
        } else if (N == 3) { // 3 2
            p = {-3, 4, -2};
        } else if (N == 4) { // 4 3
            p = {-8, 4, 5, -8};
        } else {
            p.assign(N, 0);
            p[0] = p.back() = -(N - 3);
            for (int i = 1; i < N - 1; ++i) {
                p[i] = +1;
            }
        }
        std::cout << p.size() << '\n';
        for (int i = 0; i < p.size(); ++i) {
            if (swapped) {
                p[i] *= -1;
            }
            std::cout << p[i] << " \n"[i == p.size() - 1];
        }
    } else {
        std::vector<int> p(N - 1);
        for (int i = 0; i < N - 1; ++i) {
            p[i] = 1;
        }
        std::cout << p.size() << '\n';
        for (int i = 0; i < N - 1; ++i) {
            if (swapped) {
                p[i] *= -1;
            }
            std::cout << p[i] << " \n"[i == N - 2];
        }
    }
    
    return;
}

int main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);

    int TT = 1; std::cin >> TT;
    for (int i = 1; i <= TT; ++i) {
        solve();
    }

    return 0;
}

Compilation message (stderr)

sequence.cpp: In function 'void solve()':
sequence.cpp:46:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |         for (int i = 0; i < p.size(); ++i) {
      |                         ~~^~~~~~~~~~
sequence.cpp:50:42: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |             std::cout << p[i] << " \n"[i == p.size() - 1];
      |                                        ~~^~~~~~~~~~~~~~~

• Subtask 1: 6 / 6
• Subtask 2: 0 / 9
• Subtask 3: 0 / 14
• Subtask 4: 0 / 15
• Subtask 5: 0 / 14
• Subtask 6: 0 / 18
• Subtask 7: 0 / 24