oj.uz

Submission #1097066

# Submission time Handle Problem Language Result Execution time Memory
1097066 2024-10-06T02:53:25 Z vjudge1 Automobil (COCI17_automobil) C++17
55 / 100
 1000 ms 8284 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;
}
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 = fi + (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;
    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);
    }
    // PR(hRow, n);
    // PR(hCol, m);
    vector <int> rowGreaterThan1;
    int res = 0;
    for (int i = 1 ; i <= n; ++i)
    {
        if (hRow[i] != 1)
        {
            rowGreaterThan1.push_back(i);
            for (int j = 1; j <= m; ++j)
                res = add(res, mul(hRow[i], mul(hCol[j], (i - 1) * m + j)));
                // cout << mul(hRow[i], mul(hCol[j], (i - 1) * m + j)) << " ";
        }
        // cout << endl;
    }
    // debug(res);
    for (int j = 1; j <= m; ++j)
    {
        res = add(res, mul(hCol[j], sum_progress(j, n, m)));
        for (auto i: rowGreaterThan1)
            res = sub(res, mul(hCol[j], (i - 1) * m + j));
    }
    cout << res;
}

Subtask #1
55.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 2 ms 348 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 348 KB Output is correct
9 Correct 2 ms 348 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Incorrect 296 ms 1628 KB Output isn't correct
12 Execution timed out 1027 ms 4688 KB Time limit exceeded
13 Correct 110 ms 604 KB Output is correct
14 Incorrect 135 ms 5208 KB Output isn't correct
15 Execution timed out 1031 ms 4696 KB Time limit exceeded
16 Execution timed out 1018 ms 8280 KB Time limit exceeded
17 Execution timed out 1075 ms 8284 KB Time limit exceeded
18 Execution timed out 1059 ms 8284 KB Time limit exceeded
19 Execution timed out 1066 ms 8280 KB Time limit exceeded
20 Execution timed out 1035 ms 8280 KB Time limit exceeded