11.2

int a,b,x,y;
    a=1;b=0;
    x=2;y=0;
    while(a<=100)
    {
        b=b+a;
        a=a+2;
    }
    while(x<=100)
    {
        y=y+x;
        x=x+2;
    }
    printf("奇数和为%d,偶数和为%d",b,y);