Submission #100417

#	Time	Username	Problem	Language	Result	Execution time	Memory
100417		AbduM	Land of the Rainbow Gold (APIO17_rainbow)	C++14	11 / 100	3021 ms	23560 KiB

rainbow

#include <bits/stdc++.h>
#ifdef ioi
    //#include "rainbow.h"
#else
    #include "rainbow.h"
#endif // ioi

#define sz(s)                   (ll)(s.size())
#define all(x)                  (x.begin(), x.end())
#define pb                      push_back
#define pf                      push_front
#define F                       first
#define S                       second
#define mp                      make_pair
#define ort1                    exit(0);
#define nl                      endl

#define rep(i, l, r)            for(int i = (l); i <= (r); ++i)
#define per(i, l, r)            for(int i = (l); i >= (r); --i)
#define TL                      clock() / (double)CLOCKS_PER_SEC
#define NFS                     ios_base :: sync_with_stdio(0), cin.tie(0), cout.tie(0);

using namespace std;

typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;


const double pi = acos(-1.0);
const double eps = 1e-9;
const int mod = 1e9 + 7;
const ll INF = 1e12 + 1;
const int N = 1e3 + 9;

int n, r, c, m, q;
int x, y;
int a[N][N];
bool used[N][N];
string s;

void p(int x, int y){
    rep(i, 0, m - 1){
        a[x][y] = 1;
        if(s[i] == 'N') x--;
        if(s[i] == 'E') y++;
        if(s[i] == 'W') y--;
        if(s[i] == 'S') x++;
    }
    a[x][y] = 1;
}

void init(int R, int C, int sr, int sc, int M, char *S) {
    rep(i, 0, M - 1){
        s.pb(S[i]);
    }
    m = M;
    p(sr, sc);
}

inline void dfs(int x, int y, int ar, int ac, int br, int bc){
    used[x][y] = 1;
    if(a[x + 1][y] == 0 && x + 1 <= br && used[x + 1][y] == 0) dfs(x + 1, y, ar, ac, br, bc);
    if(a[x - 1][y] == 0 && x - 1 >= ar && used[x - 1][y] == 0) dfs(x - 1, y, ar, ac, br, bc);
    if(a[x][y + 1] == 0 && y + 1 <= bc && used[x][y + 1] == 0) dfs(x, y + 1, ar, ac, br, bc);
    if(a[x][y - 1] == 0 && y - 1 >= ac && used[x][y - 1] == 0) dfs(x, y - 1, ar, ac, br, bc);
}

int colour(int ar, int ac, int br, int bc){
    int cnt = 0;
    memset(used, 0, sizeof(used));
    rep(i, ar, br){
        rep(j, ac, bc){
            if(used[i][j] == 0 && a[i][j] == 0){
                cnt++;
                dfs(i, j, ar, ac, br, bc);
            }
        }
    }
    return cnt;
    return 0;
}

namespace read{
    static int R, C, M, Q;
    static int sr, sc;
    static char S[100000 + 5];
    void input(){
        scanf("%d %d %d %d", &R, &C, &M, &Q);
        scanf("%d %d", &sr, &sc);
        if (M > 0) {
            scanf(" %s ", S);
        }

        init(R, C, sr, sc, M, S);

        int query;
        for (query = 0; query < Q; query++) {
            int ar, ac, br, bc;
            scanf("%d %d %d %d", &ar, &ac, &br, &bc);
            printf("%d\n", colour(ar, ac, br, bc));
        }
    }
}

#ifdef ioi
int main(){
    read :: input();
    ort1
}
#endif

Compilation message (stderr)

rainbow.cpp: In function 'void read::input()':
rainbow.cpp:89:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d %d %d", &R, &C, &M, &Q);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
rainbow.cpp:90:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d", &sr, &sc);
         ~~~~~^~~~~~~~~~~~~~~~~~~
rainbow.cpp:92:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf(" %s ", S);
             ~~~~~^~~~~~~~~~~
rainbow.cpp:100:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d %d %d %d", &ar, &ac, &br, &bc);
             ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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