Submission #641701

# Submission time Handle Problem Language Result Execution time Memory
641701 2022-09-17T13:10:58 Z Vladth11 Chess Rush (CEOI20_chessrush) C++14
Compilation error
0 ms 0 KB
#include <bits/stdc++.h>
#define debug(x) cerr << #x << " " << x << "\n"
#define debugs(x) cerr << #x << " " << x << " "

using namespace std;
typedef long long ll;
typedef pair <int, int> pii;

const int NMAX = 100001;
const int VMAX = 101;
const int INF = 2e9;
const int MOD = 1000000007;
const int BLOCK = 447;
const int base = 117;
const int nr_of_bits = 24;
const int inv2 = 500000004;

int comb(int n, int k) {
    if(k < n - k) {
        k = n - k;
    }
    ll prod = 1, prod2 = 1;
    for(int i = k + 1; i <= n; i++) {
        prod *= i;
        prod %= MOD;
        prod2 *= (i - k);
        prod2 %= MOD;
    }
    return Div(prod, prod2);
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int R, C, q;
    cin >> R >> C >> q;
    while(q--) {
        char T;
        cin >> T;
        int c1, cr;
        cin >> c1 >> cr;
        if(T =='P') {
            if(c1 == cr){
                cout << R - 1 << " " << 1 << "\n";
            }else{
                cout << 0 << " " << 0 << "\n";
            }
        }else if(T == 'R'){
            if(c1 == cr){
                cout << 1 << " " << 1 << "\n";
            }else{
                cout << 2 << " " << 2 << "\n";
            }
        }else if(T == 'Q'){
            pii start = {1, c1};
            pii sfarsit = {R, cr};
            if(start.second == sfarsit.second || sfarsit.first + sfarsit.second == start.first + start.second || sfarsit.first - sfarsit.second == start.first - start.second){
                cout << 1 << " " << 1 << "\n";
            }else{
                int cnt = 2;
                for(int i = start.first, j = start.second; i > 0 && j > 0; i--, j--){
                    if(i + j == sfarsit.first + sfarsit.second || i - j == sfarsit.first - sfarsit.second || i == sfarsit.first || j == sfarsit.second){
                        cnt++;
                    }
                }
                for(int i = start.first, j = start.second; i <= R && j > 0; i++, j--){
                    if(i + j == sfarsit.first + sfarsit.second || i - j == sfarsit.first - sfarsit.second || i == sfarsit.first || j == sfarsit.second)
                        cnt++;
                }
                for(int i = start.first, j = start.second; i > 0 && j <= C; i--, j++){
                    if(i + j == sfarsit.first + sfarsit.second || i - j == sfarsit.first - sfarsit.second || i == sfarsit.first || j == sfarsit.second)
                        cnt++;
                }
                for(int i = start.first, j = start.second; i <= R && j <= C; i++, j++){
                    if(i + j == sfarsit.first + sfarsit.second || i - j == sfarsit.first - sfarsit.second || i == sfarsit.first || j == sfarsit.second){
                        cnt++;
                    }
                }
                swap(start, sfarsit);
                for(int i = start.first, j = start.second; i > 0 && j > 0; i--, j--){
                    if(i == sfarsit.first || j == sfarsit.second){
                        cnt++;
                    }
                }
                for(int i = start.first, j = start.second; i <= R && j > 0; i++, j--){
                    if(i == sfarsit.first || j == sfarsit.second)
                        cnt++;
                }
                for(int i = start.first, j = start.second; i > 0 && j <= C; i--, j++){
                    if(i == sfarsit.first || j == sfarsit.second)
                        cnt++;
                }
                for(int i = start.first, j = start.second; i <= R && j <= C; i++, j++){
                    if(i == sfarsit.first || j == sfarsit.second){
                        cnt++;
                    }
                }
                cout << 2 << " " << cnt << "\n";
            }
        }
    }
    return 0;
}

Compilation message

chessrush.cpp: In function 'int comb(int, int)':
chessrush.cpp:29:12: error: 'Div' was not declared in this scope; did you mean 'div'?
   29 |     return Div(prod, prod2);
      |            ^~~
      |            div