Run id: 74745

Main.cc: In function 'int main()':
Main.cc:7:6: error: expected '(' before 'op'
  if  op== 'P'){
      ^
Main.cc:10:13: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
  if (op= 'G'){
             ^
Main.cc:13:13: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
  if (op= 'S'){
             ^