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Submission #550442

# Submission time Handle Problem Language Result Execution time Memory
550442 2022-04-18T08:15:06 Z Jarif_Rahman Plus Minus (BOI17_plusminus) C++17
100 / 100
 120 ms 13332 KB 
#include <bits/stdc++.h>
#define pb push_back
#define f first
#define sc second
using namespace std;
typedef long long int ll;
typedef string str;

const ll md = 1e9+7;

ll pw(ll x, ll p){
    if(p == 0) return 1;
    if(p%2 == 0) return pw((x*x)%md, p/2);
    return (pw(x, p-1)*x)%md;
}

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    ll n, m; int k; cin >> n >> m >> k;

    vector<tuple<str, ll, ll>> points(k);

    for(auto &[c, x, y]: points) cin >> c >> x >> y;

    ll ans = 0;

    {
        bool ok = 1;
        ll cnt = n;
        map<ll, bool> mp;

        for(int i = 0; i < k; i++){
            auto [c, x, y] = points[i];
            if(mp.find(x) == mp.end()){
                mp[x] = ((c=="+")!=(y%2==1));
                cnt--;
            }
            else{
                if(mp[x] != ((c=="+")!=(y%2==1))) ok = 0;
            }
        }

        if(ok) ans+=pw(2, cnt), ans%=md;
    }
    {
        bool ok = 1;
        ll cnt = m;
        map<ll, bool> mp;

        for(int i = 0; i < k; i++){
            auto [c, x, y] = points[i];
            if(mp.find(y) == mp.end()){
                mp[y] = ((c=="+")!=(x%2==1));
                cnt--;
            }
            else{
                if(mp[y] != ((c=="+")!=(x%2==1))) ok = 0;
            }
        }

        if(ok) ans+=pw(2, cnt), ans%=md;
    }
    {
        bool ok1 = 1, ok2 = 1;
        for(int i = 0; i < k; i++){
            auto [c, x, y] = points[i];
            if((x+y)%2 == (c=="+")) ok1 = 0;
            else ok2 = 0;
        }

        if(ok1) ans--;
        if(ok2) ans--;
        ans%=md;
        if(ans < 0) ans+=md;
    }

    cout << ans << "\n";
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 316 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 320 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct

Subtask #2
42.0 / 42.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 316 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 320 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 52 ms 5972 KB Output is correct
17 Correct 47 ms 5972 KB Output is correct
18 Correct 47 ms 6016 KB Output is correct
19 Correct 52 ms 5972 KB Output is correct
20 Correct 46 ms 5900 KB Output is correct

Subtask #3
46.0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 316 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 320 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 52 ms 5972 KB Output is correct
17 Correct 47 ms 5972 KB Output is correct
18 Correct 47 ms 6016 KB Output is correct
19 Correct 52 ms 5972 KB Output is correct
20 Correct 46 ms 5900 KB Output is correct
21 Correct 98 ms 9952 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 99 ms 10040 KB Output is correct
24 Correct 101 ms 10036 KB Output is correct
25 Correct 103 ms 9936 KB Output is correct
26 Correct 95 ms 11172 KB Output is correct
27 Correct 95 ms 11148 KB Output is correct
28 Correct 100 ms 11212 KB Output is correct
29 Correct 98 ms 11280 KB Output is correct
30 Correct 120 ms 13332 KB Output is correct