foo.cc: In function ‘int main()’:
foo.cc:7:5: warning: this ‘if’ clause does not guard... [-Wmisleading-indentation]
    7 |     if(n>=90)
      |     ^~
foo.cc:8:11: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘if’
    8 |     cnt++;+
      |           ^
foo.cc:9:5: error: expected primary-expression before ‘if’
    9 |     if(m>=90)
      |     ^~
foo.cc:15:20: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses]
   15 |     if(n>=90&&m>=90&&b>=90||c>=90)
      |        ~~~~~~~~~~~~^~~~~~~