Compilare: main.c: In function 'main': main.c:40:29: warning: suggest parentheses around '&&' within '||' [-Wparentheses] if(l>0 || v[j]==')' && s[l]=='(' || v[j]==']' && s[l]=='[') ~~~~~~~~~~^~~~~~~~~~~~ main.c:40:55: warning: suggest parentheses around '&&' within '||' [-Wparentheses] if(l>0 || v[j]==')' && s[l]=='(' || v[j]==']' && s[l]=='[') ~~~~~~~~~~^~~~~~~~~~~~ main.c:12:3: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&t); ^~~~~~~~~~~~~~~~~~~