Submission #236734

#	Time	Username	Problem	Language	Result	Execution time	Memory
236734		Vimmer	Automobil (COCI17_automobil)	C++14	100 / 100	26 ms	16128 KiB

automobil

#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>

//#pragma GCC optimize("unroll-loops")
//#pragma GCC optimize("-O3")
//#pragma GCC optimize("Ofast")
//#pragma GCC optimize("fast-math")
//#pragma GCC optimize("no-stack-protector")

#define F first
#define S second
#define sz(x) int(x.size())
#define pb push_back
#define N 1000001
#define M ll(1e9 + 7)
#define inf 1e9 + 1e9

using namespace std;
//using namespace __gnu_pbds;

typedef long double ld;
typedef long long ll;
typedef unsigned long long ull;
typedef short int si;
typedef array <int, 2> a2;

//typedef tree <int, null_type, less_equal<int>, rb_tree_tag, tree_order_statistics_node_update> ordered_set;


ll fx(ll x, ll y) {return (x * y) % M;}

ll sm(ll x, ll y) {return (x + y) % M;}

ll row[N], cow[N];

int main()
{
    //freopen("input.txt", "r", stdin); //freopen("output4.txt", "w", stdout);

    ios_base::sync_with_stdio(0); istream::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    int n, m, k;

    cin >> n >> m >> k;

    for (int i = 0; i < n; i++) row[i] = 1;

    for (int i = 0; i < m; i++) cow[i] = 1;

    for (int i = 0; i < k; i++)
    {
        char c;

        cin >> c;

        ll x, val;

        cin >> x >> val;

        x--;

        if (c == 'R') row[x] = fx(row[x], val);
            else cow[x] = fx(cow[x], val);
    }

    ll ans = 0, smr = 0, real_sm = 0;

    for (int i = 0; i < n; i++)
    {
        smr = sm(smr, fx(row[i], fx(i, m)));

        real_sm = sm(real_sm, row[i]);
    }

    for (int i = 0; i < m; i++)
    {
        ll val = sm(smr, fx(real_sm, i + 1));

        val = fx(val, cow[i]);

        ans = sm(ans, val);
    }

    cout <<  ans << endl;
}

• Subtask 1: 100 / 100