单选题库

int N=0,i;
int tnt = 0;
for (i = 5; i < 100; i+=5){
    if (i % 2 == 0)
        continue;
    tnt += 1;
    if (i >= 50)
        break;
}
cout << tnt;

int tnt = 0;
for (i = 0; i < 100; i++)
    tnt += i % 10;
cout << tnt;

int N=0,i;
for (i = 1; i < 10; i++)
    N += 1;
cout << (N + i);

int N, nowDay, afterDays;
cout << "今天星期几？" << endl;
cin >> nowDay;
cout << "求几天后星期几？" << endl;
cin >> afterDays;
N = nowDay + afterDays;
if(_____________)
    printf("星期天");
else
    printf("星期%d", N%7);