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经典指数
1
0
2554
What is the output of the following piece of C++ code? using namespace std; struct Item { char c; Item *next; }; Item *Routine1(Item *x) { Item *prev = NULL, *curr = x; while (curr) { Item *next = curr->next; curr->next = prev; prev = curr; curr = next; } return prev; } void Routine2(Item *x) { Item *curr = x; while (curr) { cout << curr->c << ” “; curr = curr->next; } ...
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经典指数
1
0
2547
Suppose that a Selection Sort of 80 items has completed 32 iterations of the main loop. How many items are now guaranteed to be in their final spot (never to be moved again)? 16 31 32 39 40 ...
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经典指数
1
0
2515
下面代码段的运行结果(环境linux平台, g++编译器): int main() { int x = 10; int y = 10; x = y = ++y; printf("%d %d", x, y); return 0; } 10 10 10 11 11 10 11 11 ...
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经典指数
1
0
2514
A table CANNOT have one or more of the following index configurations. No indexes A clustered index clustered index and many non-clustered indexes Many clustered index ...
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数据库
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经典指数
1
0
2447
C#程序段的结果: int[][] array = new int[3][]{ new int[3]{5,6,2}, new int[5]{6,9,7,8,3}, new int[2]{3,2} }; array[2][2] 返回() 9 6 2 溢出 ...
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数组
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经典指数
1
0
2415
What is the result of binary number 01011001 after multiplying by 0111001 and adding 1101110? 0001 0100 0011 1111 0101 0111 0111 0011 0011 0100 0011 0101 ...
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基础知识
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经典指数
1
0
2365
Initialize integer i as 0, what's the value of i after the following operation?i += i > 0 ? i++ : i--; -2 -1 0 1 2 ...
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C语言工程师
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经典指数
1
0
2348
Which of following C++ code is correct? int f() { int *a = new int(3); return *a; } int *f() { int a[3] = {1, 2, 3}; return a; } vector<int> f() {vector<int> v(3); return v; } void f(int *ret) { int a[3] = {1, 2, 3}; ret = a; return; } ...
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经典指数
1
0
2298
In which case(s) would you use an outer join? The table being joined have NOT NULL columns. The table being joined have only matched data. The columns being joined have NULL values. The table being joined have only unmatched data. The table being joined have both matched and unmatched data. ...
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数据库
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经典指数
1
0
2278
To speed up data access , we build cache system. In one system , The L1 cache access time is 5 ns , the L2 cache access time is 50 ns and the memory access time is 400 ns. The L1 cache miss rate is 50% , the L2 cache miss rate is 10%. The average data access time of this system is: 5 30 45 50 55 ...
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5
47
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39
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