思路
模拟一下即可,每次让 mainTank
减去 5 ,然后如果 additionalTank
大于 0,就在让 mainTank
加 1,最后让 additionalTank
减 1。当不满足 mainTank - 5 >= 0 && additionalTank > 0
时即退出。
class Solution {
public:
int distanceTraveled(int mainTank, int additionalTank) {
int res = mainTank * 10;
while ( mainTank ) {
if ( mainTank - 5 >= 0 && additionalTank > 0 ) {
res += 10;
mainTank -= 5;
mainTank ++;
additionalTank --;
}
else break;
}
return res;
}
};