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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#254401#5544. Grid Gamewarner1129WA 0ms3820kbC++201.7kb2023-11-18 12:05:472023-11-18 12:05:47

Judging History

你现在查看的是最新测评结果

  • [2023-11-18 12:05:47]
  • 评测
  • 测评结果:WA
  • 用时:0ms
  • 内存:3820kb
  • [2023-11-18 12:05:47]
  • 提交

answer

#include <bits/stdc++.h>

using namespace std;

#ifdef LOCAL
template<class... T> void dbg(T... x) { char e{}; ((cerr << e << x, e = ' '), ...); }
template<class T> void org(T l, T r) { while (l != r) cerr << ' ' << *l++; cerr << '\n'; }
#define debug(x...) dbg(#x, '=', x, '\n')
#define olist(x...) dbg(#x, '='), org(x)
#else
#define debug(...) ((void)0)
#define olist(...) ((void)0)
#endif
#define all(v) (v).begin(), (v).end()
#define rall(v) (v).rbegin(), (v).rend()
#define ff first
#define ss second

using u32 = unsigned int;
using i64 = long long;
using u64 = unsigned long long;
using i128 = __int128;
using u128 = unsigned __int128;

template<class T>
inline constexpr T inf = numeric_limits<T>::max() / 2;
constexpr int mod = 998244353;

template<class T> bool chmin(T &a, T b) { return (b < a and (a = b, true)); }
template<class T> bool chmax(T &a, T b) { return (a < b and (a = b, true)); }
template<class... T> int add(T... x) { int t{}; return (((t += x) %= mod), ...), t; }
template<class... T> int mul(T... x) { i64 t{1}; return (((t *= x) %= mod), ...), t; }

void solve() {
    int n, m;
    cin >> n >> m;

    vector G(n, vector<int>(m));
    for (int i = 0; i < n; i++)
        for (int j = 0; j < m; j++) {
            cin >> G[i][j];
        }

    int s = 0;
    for (int i = 0; i < n; i++)
        for (int j = 0; j < m; j++) {
            if ((i == n - 1 or G[i + 1][j] == -1) and (j == m - 1 or G[i][j + 1] == -1)) {
                s ^= G[i][j];
            }
        }

    cout << (s == 0 ? "second\n" : "first\n");
    
}

signed main() {
    cin.tie(0)->sync_with_stdio(false);
    cin.exceptions(cin.failbit);
    int T = 1;
    // cin >> T;
    while (T--) {
        solve();
    }
    
    return 0;
}


详细

Test #1:

score: 100
Accepted
time: 0ms
memory: 3820kb

input:

5 6
0 0 0 0 0 0
0 3 3 0 0 0
0 0 3 -1 0 0
0 0 3 3 3 3
0 0 -1 -1 -1 -1

output:

first

result:

ok single line: 'first'

Test #2:

score: 0
Accepted
time: 0ms
memory: 3608kb

input:

2 2
1 1
2 -1

output:

first

result:

ok single line: 'first'

Test #3:

score: -100
Wrong Answer
time: 0ms
memory: 3804kb

input:

1 1
-1

output:

first

result:

wrong answer 1st lines differ - expected: 'second', found: 'first'