foo.cc: In function ‘int main()’:
foo.cc:9:17: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses]
    9 |         if(a==90&&b+c==90||b==90&&a+c==90||c==90&&a+b==90)
      |            ~~~~~^~~~~~~~~
foo.cc:9:49: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses]
    9 |         if(a==90&&b+c==90||b==90&&a+c==90||c==90&&a+b==90)
      |                                            ~~~~~^~~~~~~~~