tetris.cpp: In function 'int main()':
tetris.cpp:23:33: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
23 | else if (a[i][j]>=97&&(a[i][j]==a[i][j+1]&&a[i][j]==a[i][j+2]&&a[i][j]==a[i][j+3])||(a[i][j]==a[i+1][j]&&a[i][j]==a[i+2][j]&&a[i][j]==a[i+3][j]))
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
tetris.cpp:25:33: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
25 | else if (a[i][j]>=97&&(a[i][j]==a[i][j+1]&&a[i][j]==a[i+1][j]&&a[i][j]==a[i+1][j-1])||(a[i][j]==a[i+1][j]&&a[i][j]==a[i+1][j+1]&&a[i][j]==a[i+2][j+1]))
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
tetris.cpp:27:33: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
27 | else if (a[i][j]>=97&&(a[i][j]==a[i][j+1]&&a[i][j]==a[i+1][j+1]&&a[i][j]==a[i+1][j+2])||(a[i][j]==a[i+1][j]&&a[i][j]==a[i+1][j-1]&&a[i][j]==a[i+2][j-1]))
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
tetris.cpp:29:33: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
29 | else if (a[i][j]>=97&&(a[i][j]==a[i+1][j]&&a[i][j]==a[i+1][j+1]&&a[i][j]==a[i+1][j-1])||(a[i][j]==a[i][j+1]&&a[i][j]==a[i][j+2]&&a[i][j]==a[i+1][j+1])||(a[i][j]==a[i+1][j]&&a[i][j]==a[i+2][j]&&a[i][j]==a[i+1][j+1])||(a[i][j]==a[i+1][j]&&a[i][j]==a[i+2][j]&&a[i][j]==a[i+1][j-1]))
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~