#include<bits/stdc++.h>
using namespace std;
//#include<ext/pb_ds/assoc_container.hpp>
//#include<ext/pb_ds/tree_policy.hpp>
//
// #pragma GCC optimize("unroll-loops")
// #pragma GCC optimize("Ofast")
// #pragma GCC optimize("-O3")
// #pragma GCC optimize("no-stack-protector")
// #pragma GCC optimize("fast-math")
//#define LOCAL
#define sim template < class c
#define ris return * this
#define dor > debug & operator <<
#define eni(x) sim > typename \
enable_if<sizeof dud<c>(0) x 1, debug&>::type operator<<(c i) {
sim > struct rge { c b, e; };
sim > rge<c> range(c i, c j) { return rge<c>{i, j}; }
sim > auto dud(c* x) -> decltype(cerr << *x, 0);
sim > char dud(...);
struct debug {
#ifndef LOCAL
~debug() { cerr << endl; }
eni(!=) cerr << boolalpha << i; ris; }
eni(==) ris << range(begin(i), end(i)); }
sim, class b dor(pair < b, c > d) {
ris << "(" << d.first << ", " << d.second << ")";
}
sim dor(rge<c> d) {
*this << "[";
for (auto it = d.b; it != d.e; ++it)
*this << ", " + 2 * (it == d.b) << *it;
ris << "]";
}
#else
sim dor(const c&) { ris; }
#endif
};
#define imie(...) " [" << #__VA_ARGS__ ": " << (__VA_ARGS__) << "] "
#define fi first
#define f first
#define se second
#define s second
#define vi_a vector<int>a;
#define p_b push_back
////////////////////////////////???????????????CHECK THIS OUT???????????????//////////////////////////////
#define ll long long
typedef unsigned long long ull;
////////////////////////////////???????????????CHECK THIS OUT???????????????//////////////////////////////
#define ld long double
#define pll pair<ll,ll>
#define pii pair<int,int>
#define m_p make_pair
#define fast_io cin.tie(0);cout.tie(0);ios_base::sync_with_stdio(0);
#define all(x) x.begin(),x.end()
#define getfiles ifstream cin("input.txt");ofstream cout("output.txt");
#define pw(x) (1ll << x)
#define sz(x) (int)x.size()
#define endl "\n"
#define rall(x) x.rbegin(),x.rend()
#define len(a) (ll)a.size()
#define rep(x,l,r) for(ll x=l;x<r;x++)
//using namespace __gnu_pbds;
ld eps = (ld)1 / 1e6;
const ld pi=3.14159265359;
ll inf = 1e18,mod1=1e9+7;
ll sqr(ll a) { return a * a; }
ll qb(ll a) { return a * a * a; }
ll gcd(ll a, ll b) { return !a ? b : gcd(b % a, a); }
ll binpow(ll a, ll b, ll mod) { return b ? (b % 2 ? (a * (sqr(binpow(a, b / 2, mod)) % mod)) % mod : sqr(binpow(a, b / 2, mod)) % mod) : 1; }
ll binmult(ll a, ll b, ll mod) { return b ? (b % 2 ? (2 * binmult(a, b / 2, mod) + a) % mod : (2 * binmult(a, b / 2, mod)) % mod) : 0; }
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
const ll R=1e4;
const ll tx[4]={0,0,-1,1};
const ll ty[4]={-1,1,0,0};
const char rev_to[4]={'E','W','N','S'};
const int N=1e6+1e5;
const int M=1e9+7;
//typedef tree<ll,null_type,less<ll>,rb_tree_tag,tree_order_statistics_node_update> st;
auto rnd=bind(uniform_int_distribution<ll>(1,1e18),mt19937(time(0)));
char c[N];ll a1[N],a2[N];
signed main()
{
fast_io;
ll n,m,k;
cin>>n>>m>>k;
ll ans=((1+n*m)%M*(n*m)%M);
int po=binpow(2,M-2,M);
ans=ans*po%M;
for(int i=0;i<k;i++){
cin>>c[i]>>a1[i]>>a2[i];
if(c[i]=='R'){
ll f=(1+(a1[i]-1)*m)%M;
ll last=(f+m-1)%M;
ll perv=(f+last)*m%M*po%M;
ll total=1;
set<pll>st;
for(int j=0;j<i;j++){
if(c[j]==c[i]){
if(a1[j]==a1[i]){
perv=perv*a2[j]%M;
total=(total*a2[j])%M;
}
}else{
auto c=st.lower_bound({a1[j],(ll)0});
if(c!=st.end() && c->f==a1[j]){
ll prev=c->s;
ll nxt=(prev*a2[j])%M;
perv=(perv-prev+M)%M;
perv=(perv+nxt)%M;
st.erase(c);
st.insert({a1[j],nxt});
}else{
ll prev=(total)%M*(f+a1[j]-1)%M;
ll nxt=prev*a2[j]%M;
perv=(perv-prev+M)%M;
perv=(perv+nxt)%M;
st.insert({a1[j],nxt});
}
}
}
ans=(ans-perv+M)%M;
ans=(ans+(perv*a2[i])%M)%M;
}else{
ll f=(1+(a1[i]-1))%M;
ll last=(f+(n-1)*m)%M;
ll perv=(f+last)*n%M*po%M;
ll total=1;
set<pll>st;
for(int j=0;j<i;j++){
if(c[j]==c[i]){
if(a1[j]==a1[i]){
perv=perv*a2[j]%M;
total=(total*a2[j])%M;
}
}else{
auto c=st.lower_bound({a1[j],(ll)0});
if(c!=st.end() && c->f==a1[j]){
ll prev=c->s;
ll nxt=(prev*a2[j])%M;
perv=(perv-prev+M)%M;
perv=(perv+nxt)%M;
st.erase(c);
st.insert({a1[j],nxt});
}else{
ll prev=(total)%M*(f+(a1[j]-1)*m)%M;
ll nxt=prev*a2[j]%M;
perv=(perv-prev+M)%M;
perv=(perv+nxt)%M;
st.insert({a1[j],nxt});
}
}
}
ans=(ans-perv+M)%M;
ans=(ans+(perv*a2[i])%M)%M;
}
}
cout<<ans;
return 0;
}
/*
1 0 3 4
5 0 7 8
/
*/
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
2 ms |
384 KB |
Output isn't correct |
| 2 |
Incorrect |
13 ms |
384 KB |
Output isn't correct |
| 3 |
Incorrect |
1 ms |
384 KB |
Output isn't correct |
| 4 |
Incorrect |
24 ms |
384 KB |
Output isn't correct |
| 5 |
Incorrect |
9 ms |
384 KB |
Output isn't correct |
| 6 |
Incorrect |
3 ms |
384 KB |
Output isn't correct |
| 7 |
Incorrect |
19 ms |
384 KB |
Output isn't correct |
| 8 |
Incorrect |
6 ms |
384 KB |
Output isn't correct |
| 9 |
Incorrect |
15 ms |
384 KB |
Output isn't correct |
| 10 |
Incorrect |
25 ms |
384 KB |
Output isn't correct |
| 11 |
Incorrect |
10 ms |
384 KB |
Output isn't correct |
| 12 |
Incorrect |
37 ms |
384 KB |
Output isn't correct |
| 13 |
Incorrect |
7 ms |
384 KB |
Output isn't correct |
| 14 |
Incorrect |
1 ms |
384 KB |
Output isn't correct |
| 15 |
Incorrect |
24 ms |
384 KB |
Output isn't correct |
| 16 |
Incorrect |
38 ms |
384 KB |
Output isn't correct |
| 17 |
Incorrect |
38 ms |
512 KB |
Output isn't correct |
| 18 |
Incorrect |
39 ms |
512 KB |
Output isn't correct |
| 19 |
Incorrect |
39 ms |
384 KB |
Output isn't correct |
| 20 |
Incorrect |
38 ms |
384 KB |
Output isn't correct |
