• 2022-06-07 问题

    请问以下方法的时间复杂度是多少?int n = 10;for (i = 1; i < n; ++i) {    for (j = 1; j < n; j += n / 2) {        for (k = 1; k < n; k = 2 * k) {            x = x + 1;        }    }} A: O(n^3) B: O(n2logn) C: O(n(logn)*2) D: O(nlogn)

    请问以下方法的时间复杂度是多少?int n = 10;for (i = 1; i < n; ++i) {    for (j = 1; j < n; j += n / 2) {        for (k = 1; k < n; k = 2 * k) {            x = x + 1;        }    }} A: O(n^3) B: O(n2logn) C: O(n(logn)*2) D: O(nlogn)

  • 2022-10-25 问题

    反应: 2CH 4 (g)+O 2 (g)===2CH 3 OH(g) 在 400K 时的 K Θ (400K)=1.18 ´ 10 10 ,则反应: CH 3 OH(g) === CH 4 (g)+(1/2)O 2 (g) 的 K Θ (400K) =( ) 。

    反应: 2CH 4 (g)+O 2 (g)===2CH 3 OH(g) 在 400K 时的 K Θ (400K)=1.18 ´ 10 10 ,则反应: CH 3 OH(g) === CH 4 (g)+(1/2)O 2 (g) 的 K Θ (400K) =( ) 。

  • 2022-06-16 问题

    硫酸钾含有效钾()。 A: K<sub>2</sub>O,43%~46% B: K<sub>2</sub>SO<sub>4</sub>,48%~52% C: K<sub>2</sub>O,55%~46% D: K<sub>2</sub>O,48%~52%

    硫酸钾含有效钾()。 A: K<sub>2</sub>O,43%~46% B: K<sub>2</sub>SO<sub>4</sub>,48%~52% C: K<sub>2</sub>O,55%~46% D: K<sub>2</sub>O,48%~52%

  • 2022-07-29 问题

    设矩阵\({A^k} = O \),则\({(E - A)^{ - 1}} = \) A: \(E + A + {A^2} + ... + {A^{k - 1}} \) B: \( A + {A^2} + ... + {A^{k - 1}}\) C: \(E + A + {A^2} + ... + {A^{k }}\) D: \(E + {A^2} + ... + {A^{k - 1}}\)

    设矩阵\({A^k} = O \),则\({(E - A)^{ - 1}} = \) A: \(E + A + {A^2} + ... + {A^{k - 1}} \) B: \( A + {A^2} + ... + {A^{k - 1}}\) C: \(E + A + {A^2} + ... + {A^{k }}\) D: \(E + {A^2} + ... + {A^{k - 1}}\)

  • 2021-04-14 问题

    G=,o(a)=10,以下哪个k使得G=()

    G=,o(a)=10,以下哪个k使得G=()

  • 2021-04-14 问题

    【单选题】O(1) , O(10000logn ), O(n!) , O(nlogn) , O(n 2 ) , O(10 5 n) , O(0.0001n 3 ) , O(2 n ) , O(10 -9 n 3 +2n+100)中时间复杂度最高的是 A. O(n!) B. O(10000logn ) C. O(10 5 n) D. O(2 n )

    【单选题】O(1) , O(10000logn ), O(n!) , O(nlogn) , O(n 2 ) , O(10 5 n) , O(0.0001n 3 ) , O(2 n ) , O(10 -9 n 3 +2n+100)中时间复杂度最高的是 A. O(n!) B. O(10000logn ) C. O(10 5 n) D. O(2 n )

  • 2022-11-03 问题

    K-means(k-均值)算法的时间复杂度大约是多少? A: O(nkt) B: O(k(n-k)2) C: O(n2) D: O(k(n-k)3)

    K-means(k-均值)算法的时间复杂度大约是多少? A: O(nkt) B: O(k(n-k)2) C: O(n2) D: O(k(n-k)3)

  • 2022-07-28 问题

    Conversation 17.A) At 2 o'clock this afternoon. B) At 3 o'clock this afternoon. C) At 10 o'clock this morning. D) At 10 o'clock tomorrow morning. A: At 2 o'clock this afternoon. B: At 3 o'clock this afternoon. C: At 10 o'clock this morning. D: At 10 o'clock tomorrow morning.

    Conversation 17.A) At 2 o'clock this afternoon. B) At 3 o'clock this afternoon. C) At 10 o'clock this morning. D) At 10 o'clock tomorrow morning. A: At 2 o'clock this afternoon. B: At 3 o'clock this afternoon. C: At 10 o'clock this morning. D: At 10 o'clock tomorrow morning.

  • 2022-11-03 问题

    K-means算法(K-均值算法)的时间复杂度大约是多少? A: O(nkt) B: O(k(n-k)2) C: O(n2) D: O(k(n-k)3)

    K-means算法(K-均值算法)的时间复杂度大约是多少? A: O(nkt) B: O(k(n-k)2) C: O(n2) D: O(k(n-k)3)

  • 2022-06-17 问题

    Until what time will the tornado watch be in effect A: 10 o'clock tonight. B: 2 o'clock in the morning. C: 2 o'clock in the afternoon. D: 10 o'clock in the mornin

    Until what time will the tornado watch be in effect A: 10 o'clock tonight. B: 2 o'clock in the morning. C: 2 o'clock in the afternoon. D: 10 o'clock in the mornin

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