Submission #562624

#	Time	Username	Problem	Language	Result	Execution time	Memory
562624		SSRS	무지개나라 (APIO17_rainbow)	C++14	Compilation error	0 ms	0 KiB

rainbow

#include <bits/stdc++.h>
#include "rainbow.h"
using namespace std;
vector<int> dx = {1, 0, -1, 0};
vector<int> dy = {0, 1, 0, -1};
vector<vector<int>> land;
void init(int R, int C, int sr, int sc, int M, char *S){
  sr--;
  sc--;
  land = vector<vector<int>>(R, vector<int>(C, 1));
  int x = sr, y = sc;
  land[x][y] = 0;
  for (int i = 0; i < M; i++){
    if (S[i] == 'N'){
      x--;
    }
    if (S[i] == 'S'){
      x++;
    }
    if (S[i] == 'E'){
      y++;
    }
    if (S[i] == 'W'){
      y--;
    }
    land[x][y] = 0;
  }
}
int colour(int ar, int ac, int br, int bc){
  ar--;
  ac--;
  int R = land.size();
  int C = land[0].size();
  vector<vector<bool>> used(R, vector<bool>(C, false));
  int ans = 0;
  for (int i = ar; i < br; i++){
    for (int j = ac; j < bc; j++){
      if (land[i][j] == 1 && !used[i][j]){
        ans++;
        used[i][j] = true;
        queue<pair<int, int>> Q;
        Q.push(make_pair(i, j));
        while (!Q.empty()){
          int x = Q.front().first;
          int y = Q.front().second;
          Q.pop();
          for (int k = 0; k < 4; k++){
            int x2 = x + dx[k];
            int y2 = y + dy[k];
            if (ar <= x2 && x2 < br && ac <= y2 && y2 < bc){
              if (land[x2][y2] == 1 && !used[x2][y2]){
                used[x2][y2] = true;
                Q.push(make_pair(x2, y2));
              }
            }
          }
        }
      }
    }
  }
  return ans;
}
int main(){
  init(6, 4, 3, 3, 9, "NWESSWEWS");
  cout << colour(2, 3, 2, 3) << endl;
  cout << colour(3, 2, 4, 4) << endl;
  cout << colour(5, 3, 6, 4) << endl;
  cout << colour(1, 2, 5, 3) << endl;
}

Compilation message (stderr)

rainbow.cpp: In function 'int main()':
rainbow.cpp:64:23: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
   64 |   init(6, 4, 3, 3, 9, "NWESSWEWS");
      |                       ^~~~~~~~~~~
/usr/bin/ld: /tmp/ccgZiZNe.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccFrneFe.o:rainbow.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status