oj.uz

Submission #891246

# Submission time Handle Problem Language Result Execution time Memory
891246 2023-12-22T14:58:04 Z Tien_Noob Automobil (COCI17_automobil) C++17
100 / 100
 13 ms 8536 KB 
//Make CSP great again
//Vengeance
#include <bits/stdc++.h>
#define TASK "TESTCODE"
using namespace std;
const int mod = 1e9 + 7, N = 1e6;
int r[N + 1], c[N + 1], k;
long long n, m;
vector<int> updr, updc;
long long res;
void read()
{
    cin >> n >> m >> k;
    fill(r + 1, r + n + 1, 1);
    fill(c + 1, c + m + 1, 1);
    while(k--)
    {
        char t;
        int x, y;
        cin >> t >> x >> y;
        if (t == 'R')
        {
            r[x] = (1LL * r[x] * y) % mod;
        }
        if (t == 'S')
        {
            c[x] = (1LL * c[x] * y) % mod;
        }
    }
}
void solve()
{
    for (int i = 1; i <= n; ++ i)
    {
        if (r[i] != 1)
        {
            res -= ((((i * m + (i - 1) * m + 1) * m / 2) % mod)) % mod;
            res %= mod;
            updr.push_back(i);
        }
        res += (((i * m + (i - 1) * m + 1) * m / 2) % mod) % mod;
        res %= mod;
    }
    for (int j = 1; j <= m; ++ j)
    {
        if (c[j] != 1)
        {
            updc.push_back(j);
            res -= ((((n - 1) * m + j + j) * n / 2) % mod) % mod;
            res %= mod;
        }
    }
    for (int i : updr)
    {
        res += ((((i * m + (i - 1) * m + 1) * m / 2) % mod) * r[i]) % mod;
        res %= mod;
    }
    for (int j : updc)
    {
        res += ((((n - 1) * m + j + j) * n / 2) % mod * c[j]) % mod;
    }
    for (int i : updr)
    {
        for (int j : updc)
        {
            long long cur = ((i - 1) * m + j) % mod;
            res += cur;
            res -= (cur * r[i]) % mod;
            res -= (cur * c[j]) % mod;
            res += ((cur * r[i]) % mod * c[j]) % mod;
            res %= mod;
        }
    }
    cout << (res + mod) % mod;
}
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    if (fopen(TASK".INP", "r"))
    {
        freopen(TASK".INP", "r", stdin);
        //freopen(TASK".OUT", "w", stdout);
    }
    int t = 1;
    bool typetest = false;
    if (typetest)
    {
        cin >> t;
    }
    for (int __ = 1; __ <= t; ++ __)
    {
        //cout << "Case " << __ << ": ";
        read();
        solve();
    }
}

Compilation message

automobil.cpp: In function 'int main()':
automobil.cpp:82:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   82 |         freopen(TASK".INP", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2392 KB Output is correct
5 Correct 1 ms 2520 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 1 ms 2768 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 2 ms 2396 KB Output is correct
11 Correct 3 ms 6748 KB Output is correct
12 Correct 7 ms 7004 KB Output is correct
13 Correct 2 ms 4560 KB Output is correct
14 Correct 6 ms 7648 KB Output is correct
15 Correct 7 ms 6748 KB Output is correct
16 Correct 11 ms 8284 KB Output is correct
17 Correct 12 ms 8536 KB Output is correct
18 Correct 11 ms 8284 KB Output is correct
19 Correct 11 ms 8284 KB Output is correct
20 Correct 13 ms 8304 KB Output is correct