Submission #416934

#	Time	Username	Problem	Language	Result	Execution time	Memory
416934		ACmachine	Chess Rush (CEOI20_chessrush)	C++17	8 / 100	3 ms	204 KiB

chessrush

#include "arithmetics.h"
#include <bits/stdc++.h>

using namespace std;
#define FOR(i, j, k, l) for(int i = (j); i < (k); i += (l))
#define FORD(i,j , k, l) for(int i = (j); i >= (k); i -= (l))
#define REP(i, n) FOR(i, 0, n, 1)
#define REPD(i, n) FORD(i, n, 0, 1)
typedef long long ll;

int main(){
    int r, c, q;
    cin >> r >> c >> q;
    auto solve_pawn = [&](int c1, int cr)->array<int,2>{
        if(c1 != cr) 
            return {0, 0};
        else{
            return {r - 1, 1};
        }
    };
    auto solve_queen = [&](int c1, int cr)->array<int,2>{
        if(c1 == cr){
            return {1, 1};
        }
        else if(abs(c1 - cr) == r - 1){
            return {1, 1};
        }
        else{
            array<int, 2> res = {2, 4};
            int f = r - 1 + cr - c1; int xf = f / 2;
            if(f % 2 == 0 && c1 + xf <= c && r - 1 - xf >= 0)
                res[1]++;
            int s = r - 1 + c1 - cr; int xs = s / 2;
            if(s % 2 == 0 && c1 - xs >= 1 && r - 1 - xs >= 0)
                res[1]++;
            if(r == c && (c1 == 1 || c1 == c)) 
                res[1]++;
            if(r == c && (cr == 1 || cr == c))
                res[1]++;
            /*
            if(c1 < cr && (r - tm) % 2 == 0 && cr + (r - tm) / 2 <= c)
                res[1]++;
            if(c1 > cr && (r - tm) % 2 == 0 && cr - (r - tm) / 2 >= 1)
                res[1]++;
                */
            return res;
        }
    };
    auto solve_rook = [&](int c1, int cr)->array<int,2>{
        if(c1 == cr){
            return {1, 1};
        }
        else{
            return {2, 2};
        }
    };
    REP(i, q){
        char t;
        int c1, cr;
        cin >> t >> c1 >> cr;
        array<int, 2> res;
        if(t == 'P')
            res = solve_pawn(c1, cr);
        else if(t == 'Q')
            res = solve_queen(c1, cr);
        else if(t == 'R')
            res = solve_rook(c1, cr);
        cout << res[0] << " " << res[1] << "\n";
    }
    return 0;
}

• Subtask 1: 0 / 0
• Subtask 2: 8 / 8
• Subtask 3: 0 / 15
• Subtask 4: 0 / 22
• Subtask 5: 0 / 5
• Subtask 6: 0 / 8
• Subtask 7: 0 / 15
• Subtask 8: 0 / 20
• Subtask 9: 0 / 7