| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 559875 | Sam_a17 | Automobil (COCI17_automobil) | C++17 | 27 ms | 23828 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#define _CRT_SECURE_NO_WARNINGS
#include <bits/stdc++.h>
// #include "temp.cpp"
#include <cstdio>
using namespace std;
#ifndef ONLINE_JUDGE
#define dbg(x) cerr << #x <<" "; print(x); cerr << endl;
#else
#define dbg(x)
#endif
#define sz(x) (int((x).size()))
#define len(x) (int)x.length()
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define clr(x) x.clear()
#define uniq(x) x.resize(unique(all(x)) - x.begin());
#define blt __builtin_popcount
#define pb push_back
#define pf push_front
#define popf pop_front
#define popb pop_back
void print(long long t) {cerr << t;}
void print(int t) {cerr << t;}
void print(string t) {cerr << t;}
void print(char t) {cerr << t;}
void print(double t) {cerr << t;}
void print(long double t) {cerr << t;}
void print(unsigned long long t) {cerr << t;}
template <class T> void print(set <T> v);
template <class T> void print(vector <T> v);
template <class T> void print(multiset <T> v);
template <class T, class V> void print(map <T, V> v);
template <class T, class V> void print(pair <T, V> p);
template <class T, class V> void print(T v[],V n) {cerr << "["; for(int i = 0; i < n; i++) {print(v[i]); cerr << " "; } cerr << "]";}
template <class T, class V> void print(pair <T, V> p) {cerr << "{"; print(p.first); cerr << ","; print(p.second); cerr << "}";}
template <class T> void print(vector <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T> void print(deque<T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T> void print(set <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T> void print(multiset <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T, class V> void print(map <T, V> v) {cerr << "[ "; for (auto i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T, class V> void print(unordered_map<T, V> v) {cerr << "[ "; for (auto i : v) {print(i); cerr << " ";} cerr << "]";}
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
#define nl '\n'
// for grid problems
int dx[8] = {-1,0,1,0,1,-1,1,-1};
int dy[8] = {0,1,0,-1,1,1,-1,-1};
// lowest / (1 << 17) >= 1e5 / (1 << 18) >= 2e5 / (1 << 21) >= 1e6
void fastIO() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr); cout.tie(nullptr);
}
// file in/out
void setIO(string str = "") {
fastIO();
if (str != "" && str != "input") {
freopen((str + ".in").c_str(), "r", stdin);
freopen((str + ".out").c_str(), "w", stdout);
}
if(str == "input") {
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
}
}
// Indexed Set
template <class T> using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
typedef unsigned long long int ull;
const ull mod = 1e9 + 7;
ull n, m, k;
void solve_() {
cin >> n >> m >> k;
vector<ull> row(n + 1, 1), col(m + 1, 1);
vector<ull> colSum(m + 1, 1);
for(int i = 1; i <= k; i++) {
char ch; ull x, y;
cin >> ch >> x >> y;
if(ch == 'R') {
row[x] *= y;
row[x] %= mod;
} else {
col[x] *= y;
col[x] %= mod;
}
}
for(int i = 1; i <= m; i++) {
colSum[i] = (i * n) % mod;
ull curr = (n * (n - 1) / 2) % mod;
curr *= m, curr %= mod;
colSum[i] += curr;
colSum[i] %= mod;
}
ull s = 0, toadd = 0;
for(int i = 1; i <= n; i++) {
if(row[i] == 1) continue;
ull currValue = 1 + (i - 1) * m;
currValue %= mod;
colSum[1] += currValue * (row[i] - 1);
colSum[1] %= mod;
s += currValue * (row[i] - 1);
s %= mod;
toadd += row[i] - 1;
toadd %= mod;
}
for(int i = 2; i <= m; i++) {
s += toadd; s %= mod;
colSum[i] += s; colSum[i] %= mod;
}
ull ansi = 0;
for(int i = 1; i <= m; i++) {
colSum[i] *= col[i];
colSum[i] %= mod;
ansi += colSum[i];
ansi %= mod;
}
printf("%lld\n", ansi);
}
int main() {
setIO();
auto solve = [&](int test_case)-> void {
while(test_case--) {
solve_();
}
};
int test_cases = 1;
solve(test_cases);
return 0;
}
Compilation message (stderr)
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|---|---|---|---|---|
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