Run id: 100510

Main.cc: In function 'int main()':
Main.cc:7:9: warning: statement has no effect [-Wunused-value]
    for(m;m<=n;m++){
         ^
Main.cc:9:11: error: 'sum1' was not declared in this scope
           sum1+=m;
           ^
Main.cc:11:12: error: 'sum2' was not declared in this scope
            sum2+=m;
            ^
Main.cc:13:24: error: 'sum1' was not declared in this scope
     cout<<"偶数和"<