#include<bits/stdc++.h>
#define int long long
#define pb push_back
#define mp make_pair
#define pii pair<int, int>
#define ff first
#define ss second
#define endl '\n'
using namespace std;
const int mxN = 1e4 + 5;
const int mod = 1e9 + 7;
struct point{
int x, y;
char c;
point(char c1, int x1, int y1){
c = c1; x = x1; y = y1;
}
};
bool cmp(point a, point b){
if(a.x == b.x) return (a.y < b.y);
return (a.x < b.x);
}
int binpow(int x, int y){
int res = 1;
while(y != 0){
if(y % 2 == 1) res = (res * x) % mod;
x = (x * x) % mod;
y /= 2;
}
return res;
}
int n, m, k;
map<int, int> mp1;
vector<point> v;
signed main(){
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
cin >> n >> m >> k;
for(int i = 1; i <= k; ++i){
char c; int x, y;
cin >> c >> x >> y;
point tmp(c, x, y);
v.pb(tmp);
}
sort(v.begin(), v.end(), cmp);
bool flag = true;
int diff = 1;
for(int i = 1; i < k; ++i){
if(v[i - 1].x == v[i].x){
int tmp = v[i].y - v[i - 1].y, tmp1 = 0;
if(v[i - 1].c != v[i].c) tmp1 = 1;
if(tmp % 2 != tmp1){
flag = false;
break;
}
}
else{
diff++;
//cout << v[i - 1].x << ' ' << v[i].x << " " << i << endl;
}
}
int ans = 0;
//cout << flag << " " << diff << endl;
if(flag){
ans += binpow(2, n - diff);
//cout << ans << endl;
for(int i = 0; i < k; ++i){
int tmp = -1;
if(v[i].c == '+') tmp += 2;
if(mp1[v[i].y] == 0) mp1[v[i].y] = tmp;
if(mp1[v[i].y] != tmp){
cout << ans << endl;
return 0;
}
}
ans = (ans * binpow(2, m - mp1.size())) % mod;
cout << ans << endl;
}
else{
for(int i = 0; i < k; ++i){
int tmp = -1;
if(v[i].c == '+') tmp += 2;
if(mp1[v[i].y] == 0) mp1[v[i].y] = tmp;
if(mp1[v[i].y] != tmp){
cout << ans << endl;
return 0;
}
}
ans = (ans * binpow(2, m - mp1.size())) % mod;
cout << ans << endl;
}
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
