foo.cc: In function 'int main()':
foo.cc:13:30: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   13 |                 if(w==11&&w>l&&w-l>=2||l==11&&l>w&&l-w>=2) {
      |                    ~~~~~~~~~~^~~~~~~~
foo.cc:17:37: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   17 |                 } else if(w>=11&&w>l&&w-l>=2||l>=11&&l>w&&l-w>=2) {
      |                           ~~~~~~~~~~^~~~~~~~
foo.cc:29:30: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   29 |                 if(w==21&&w>l&&w-l>=2||l==21&&l>w&&l-w>2) {
      |                    ~~~~~~~~~~^~~~~~~~
foo.cc:33:37: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   33 |                 } else if(w>=21&&w>l&&w-l>=2||l>=21&&l>w&&l-w>=2) {
      |                           ~~~~~~~~~~^~~~~~~~
foo.cc:4:21: warning: 's' may be used uninitialized [-Wmaybe-uninitialized]
    4 |         int w=0,l=0,s;
      |                     ^

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