Submission #661312

#	Time	Username	Problem	Language	Result	Execution time	Memory
661312		Trisanu_Das	Tetris (COCI17_tetris)	C++17	Compilation error	0 ms	0 KiB

tetris

#include <bits/stdc++.h>
using namespace std;
 
int n, m, poss[12][12], v[7], x, y;
char a[12][12];
int di[4] = {-1, 1, 0, 0}, dj[4] = {0, 0, -1, 1};
 
void dfs(int i, int j){
  poss[i][j] = 1;
  for (int t = 0; t < 4; t++)  if (i + di[t] > 0 && i + di[t] <= n && j + dj[t] > 0 && j + dj[t] <= m && !poss[i + di[t]][j + dj[t]] && a[i][j] == a[i + di[t]][j + dj[t]]) dfs(i + di[t], j+dj[t]);
}
 
int check(int i, int j){return a[x][y] == a[x + i][y + j];}
 
int main(){
  cin >> n >> m;
  for (i = 1;i <= n; i++) for (j = 1;j <= m;j++) cin >> a[i][j];
  for (i = 1;i <= n; i++)
      for (j = 1; j <= m; j++)
          if (a[i][j] != '.' && !poss[i][j]){
                dfs(i,j);
                if (check(0,1) && check(1,0) && check(1,1)) v[1]++;
                if ((check(0,1) && check(0,2) && check(0,3)) || (check(1,0) && check(2,0) && check(3,0))) v[2]++;
                if ((check(0,1) && check(1,0) && check(1,-1)) || (check(1,0) && check(1,1) && check(2,1))) v[3]++;
                if ((check(0,1) && check(1,1) && check((1,2)) || (check((1,0) && check((1,-1) && check((2,-1))) v[4]++;
                if ((check(1,-1) && check(1,0) && check(1,1)) || (check(1,-1) && check(1,0) && check(2,0)) ||
                    (check(0,1) && check(0,2) && check(1,1)) || (check(1,0) && check(1,1) && check(2,0))) v[5]++;
            }
    for (i = 1;i < 6; i++) cout << v[i] << '\n';
}

Compilation message (stderr)

tetris.cpp: In function 'int main()':
tetris.cpp:17:8: error: 'i' was not declared in this scope; did you mean 'di'?
   17 |   for (i = 1;i <= n; i++) for (j = 1;j <= m;j++) cin >> a[i][j];
      |        ^
      |        di
tetris.cpp:17:32: error: 'j' was not declared in this scope; did you mean 'dj'?
   17 |   for (i = 1;i <= n; i++) for (j = 1;j <= m;j++) cin >> a[i][j];
      |                                ^
      |                                dj
tetris.cpp:18:8: error: 'i' was not declared in this scope; did you mean 'di'?
   18 |   for (i = 1;i <= n; i++)
      |        ^
      |        di
tetris.cpp:19:12: error: 'j' was not declared in this scope; did you mean 'dj'?
   19 |       for (j = 1; j <= m; j++)
      |            ^
      |            dj
tetris.cpp:25:57: warning: left operand of comma operator has no effect [-Wunused-value]
   25 |                 if ((check(0,1) && check(1,1) && check((1,2)) || (check((1,0) && check((1,-1) && check((2,-1))) v[4]++;
      |                                                         ^
tetris.cpp:25:61: error: too few arguments to function 'int check(int, int)'
   25 |                 if ((check(0,1) && check(1,1) && check((1,2)) || (check((1,0) && check((1,-1) && check((2,-1))) v[4]++;
      |                                                             ^
tetris.cpp:13:5: note: declared here
   13 | int check(int i, int j){return a[x][y] == a[x + i][y + j];}
      |     ^~~~~
tetris.cpp:25:74: warning: left operand of comma operator has no effect [-Wunused-value]
   25 |                 if ((check(0,1) && check(1,1) && check((1,2)) || (check((1,0) && check((1,-1) && check((2,-1))) v[4]++;
      |                                                                          ^
tetris.cpp:25:89: warning: left operand of comma operator has no effect [-Wunused-value]
   25 |                 if ((check(0,1) && check(1,1) && check((1,2)) || (check((1,0) && check((1,-1) && check((2,-1))) v[4]++;
      |                                                                                         ^
tetris.cpp:25:105: warning: left operand of comma operator has no effect [-Wunused-value]
   25 |                 if ((check(0,1) && check(1,1) && check((1,2)) || (check((1,0) && check((1,-1) && check((2,-1))) v[4]++;
      |                                                                                                         ^
tetris.cpp:25:110: error: too few arguments to function 'int check(int, int)'
   25 |                 if ((check(0,1) && check(1,1) && check((1,2)) || (check((1,0) && check((1,-1) && check((2,-1))) v[4]++;
      |                                                                                                              ^
tetris.cpp:13:5: note: declared here
   13 | int check(int i, int j){return a[x][y] == a[x + i][y + j];}
      |     ^~~~~
tetris.cpp:25:119: error: expected ')' before ';' token
   25 |                 if ((check(0,1) && check(1,1) && check((1,2)) || (check((1,0) && check((1,-1) && check((2,-1))) v[4]++;
      |                                                                  ~                                                    ^
      |                                                                                                                       )
tetris.cpp:25:119: error: expected ')' before ';' token
   25 |                 if ((check(0,1) && check(1,1) && check((1,2)) || (check((1,0) && check((1,-1) && check((2,-1))) v[4]++;
      |                     ~                                                                                                 ^
      |                                                                                                                       )
tetris.cpp:25:119: error: expected ')' before ';' token
   25 |                 if ((check(0,1) && check(1,1) && check((1,2)) || (check((1,0) && check((1,-1) && check((2,-1))) v[4]++;
      |                    ~                                                                                                  ^
      |                                                                                                                       )
tetris.cpp:29:10: error: 'i' was not declared in this scope; did you mean 'di'?
   29 |     for (i = 1;i < 6; i++) cout << v[i] << '\n';
      |          ^
      |          di