0_0_35290651_4257.c: In function 'main': 0_0_35290651_4257.c:24:21: error: expected expression before '/' token for(i=1;y>=R;i++)//while(y>=R) ^ 0_0_35290651_4257.c:34:4: error: expected expression before '/' token //x=y*i+x; ^