Submission #1117132

#	Time	Username	Problem	Language	Result	Execution time	Memory
1117132		Sofiatpc	Land of the Rainbow Gold (APIO17_rainbow)	C++14	0 / 100	2 ms	2552 KiB

rainbow

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

using namespace std;

int marc[5][200005], sum[5][200005], f, fl, fr, le, ld;

void init(int r, int c, int sr, int sc, int m, char *s) {
    marc[sr][sc] = 2;
    le = sc; ld = sc;
    for(int i = 0; i < m; i++){
        if(s[i] == 'N')sr--;
        else if(s[i] == 'S')sr++;
        else if(s[i] == 'W')sc--;
        else sc++;

        le = min(le,sc); ld = max(ld,sc);
        marc[sr][sc] = 1;
    }
    marc[1][0] = 1; marc[2][0] = 1;

    for(int i = 1; i <= r; i++){
        for(int j = 1; j <= c; j++){
            sum[i][j] = sum[i][j-1];
            if(marc[i][j-1] == 1 && marc[i][j] == 0)sum[i][j]++;
        }
    }


    if(sum[1][c] == 0 || sum[2][c] == 0){
        if(sum[1][c] != 0)f = 1;
        else f = 2;

        int l = 0;
        for(int j = 1; j <= c; j++){
            if(marc[f][j] == 1 && l == 0)l = j;
            if(marc[f][j] == 0 && l == 1){
                fl = l; fr = j-1;
                l = 0;
            }
        }
        if(l != 0){
            fl = l;
            fr = c;
        }
    }
}

int colour(int ar, int ac, int br, int bc) {
    if(f){
        if(ar != br)return 1;
        if(ar != f)return 1;
        if(ac < fl && fr < bc)return 2;
        return 1;
    }

    int ans = 0;
    if(ar == 1){
        ans += sum[1][bc] - sum[1][ac-1];
        if(marc[1][ac-1] == 0 && marc[1][ac] == 0)ans++;
    }
    if(br == 2){
        ans += sum[2][bc] - sum[2][ac-1];
        if(marc[2][ac-1] == 0 && marc[2][ac] == 0)ans++;
    }

    if(ar != br && ac < le)ans--;
    if(ar != br && bc > ld)ans--;
    return ans;
}

• Subtask 1: 0 / 11
• Subtask 2: 0 / 12
• Subtask 3: 0 / 24
• Subtask 4: 0 / 27
• Subtask 5: 0 / 26