oj.uz

Submission #1097093

# Submission time Handle Problem Language Result Execution time Memory
1097093 2024-10-06T03:47:10 Z vjudge1 Automobil (COCI17_automobil) C++17
55 / 100
 13 ms 16152 KB 
#include <bits/stdc++.h>
using namespace std;
#define REP(i, n) for (int i = 0, _n = (n); i < _n; ++i)
#define FOR(i, a, b) for (int i = (a), _b = (b); i <= _b; ++i)
#define PR(a,n) { cerr << #a << " = "; FOR(_,1,n) cerr << a[_] << ' '; cerr << endl; }
#define PR0(a,n) { cerr << #a << " = "; REP(_,n) cerr << a[_] << ' '; cerr << endl; }
#define debug(x) cerr << #x << " = " << x << endl
#define TIME (1.0 * clock() / CLOCKS_PER_SEC)
#define __builtin_popcount __builtin_popcountll
typedef unsigned long long ull;
typedef long long ll;
typedef pair<int, int> pii;
template <class T, class T2> ostream &operator<<(ostream &o, pair<T, T2> p)
{
    o << "(" << p.first << ", " << p.second << ")"; 
    return o;
}
#define int long long
namespace ModInt
{
    const int MOD = 1e9 + 7;
    int add(int x, int y)
    {
        return (x + y) % MOD;
    }
    int sub(int x, int y)
    {
        return (x - y + MOD) % MOD;
    }
    int mul(int x, int y)
    {
        return 1ll * x * y % MOD;
    }
    int pow_mod(int x, int y)
    {
        if (y == 0)
            return 1;
        int t = pow_mod(x, y >> 1);
        if (y % 2 == 0)
            return mul(t, t);
        return mul(x, mul(t, t));
    }
    const int INV2 = pow_mod(2, MOD - 2);
    int sum_progress(int fi, int len, int d)
    {
        int last = add(fi, mul(len - 1, d));
        return mul(mul(add(fi, last), len), INV2);  
    }
}

using namespace ModInt;
signed main()
{
    #ifdef LOCAL
        freopen("input.txt", "r", stdin);
        freopen("output.txt", "w", stdout);
    #endif
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n, m, q;
    cin >> n >> m >> q;
    auto get_val = [&](int row, int y)
    {
        return add(mul(row - 1, m), y);
    };
    vector <int> hRow(n + 1, 1), hCol(m + 1, 1);
    while (q--)
    {
        char type;
        int pos, val;
        cin >> type >> pos >> val;
        if (type == 'R')
            hRow[pos] = mul(hRow[pos], val);
        else
            hCol[pos] = mul(hCol[pos], val);
    }
    vector <int> rowDiff1, colDiff1;
    for (int i = 1 ; i <= n; ++i)
    {
        if (hRow[i] != 1)
            rowDiff1.push_back(i);
    }
    for (int j = 1; j <= m; ++j)
    {
        if (hCol[j] != 1)
            colDiff1.push_back(j);
    }
    int res = sum_progress(1, n * m, 1);
    for (auto row: rowDiff1)
    {
        int tmp = sum_progress(get_val(row, 1), m, 1);
        res = sub(res, tmp);
        res = add(res, mul(hRow[row], tmp));
    }
    for (auto col: colDiff1)
    {
        int tmp = sum_progress(get_val(1, col), n, m);
        res = sub(res, tmp);
        res = add(res, mul(hCol[col], tmp));
    }
    for (auto row: rowDiff1)
    {
        for (auto col: colDiff1)
        {
            res = sub(res, mul(add(hRow[row], hCol[col] - 1), get_val(row, col)));
            res = add(res, mul(mul(hRow[row], hCol[col]), get_val(row, col)));
        }
    }
    cout << res;
}

Subtask #1
55.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 456 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Incorrect 2 ms 2908 KB Output isn't correct
12 Incorrect 7 ms 8792 KB Output isn't correct
13 Correct 1 ms 860 KB Output is correct
14 Incorrect 5 ms 10076 KB Output isn't correct
15 Incorrect 6 ms 9304 KB Output isn't correct
16 Incorrect 13 ms 16152 KB Output isn't correct
17 Incorrect 12 ms 15964 KB Output isn't correct
18 Incorrect 11 ms 15964 KB Output isn't correct
19 Incorrect 11 ms 15960 KB Output isn't correct
20 Incorrect 11 ms 15912 KB Output isn't correct