Mã chấm: 269602

Main.cc: In function ‘int tinhtoan(char*, int)’:
Main.cc:16:23: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
             if(a[i+1] ='a')
                ~~~~~~~^~~~
Main.cc:18:23: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
             if(a[i+1] ='b')
                ~~~~~~~^~~~
Main.cc:22:28: error: expected ‘;’ before ‘i’
     for(int i = 0; i < n-1 i++){
                            ^
Main.cc: In function ‘void nhap(char*, int)’:
Main.cc:9:14: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%c",&a[i]);
         ~~~~~^~~~~~~~~~~~
Main.cc: In function ‘int main()’:
Main.cc:35:10: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~