API tools faq
paste
Advertisement
Guest User

Baitap

a guest
Oct 21st, 2017
91
0
Never
Add comment
Not a member of Pastebin yet? Sign Up, it unlocks many cool features!
text 10.69 KB | None | 0 0
raw download clone embed print report
  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <meta charset="UTF-8">
  5. <title>Bài tập</title>
  6. <script type="text/javascript">
  7. //Q1
  8. function q1() {
  9. var n = prompt("N = ");
  10. var x = prompt("X = ");
  11. var i;
  12. var f = 0;
  13. for(i = 1; i <= n; i++) {
  14. f += lt(x,i) / gt(i);
  15. }
  16. alert("Gia tri cua tong f la " + f);
  17. }
  18.  
  19. function gt(a) {
  20. var s = 1;
  21. var i;
  22. for(i = 2; i <= a; i++) {
  23. s *= i;
  24. }
  25. return s;
  26. }
  27.  
  28. function lt(a, b) {
  29. var t = 1;
  30. var i;
  31. for(i = 1; i <= b; i++) {
  32. t *= a;
  33. }
  34. return t;
  35. }
  36.  
  37. //Q2
  38. function q2() {
  39. var n = prompt("Nhap so phan tu (n <= 50): ");
  40. alert("Nhap day so");
  41. var i;
  42. var a = [];
  43. for(i = 0; i < n; i++) {
  44. a[i] = prompt("Phan tu thu " + (i+1));
  45. }
  46. /*In ra so lon nhat va so lan xuat hien trong day */
  47. var max = a[0];
  48. for(i = 1; i < n; i++) {
  49. if(a[i] > max) {
  50. max = a[i];
  51. }
  52. }
  53. var s = 0;
  54. for(i = 0; i < n; i++) {
  55. if(a[i] == max) {
  56. s++;
  57. }
  58. }
  59. alert("Phan tu lon nhat trong day la " + max + " va xuat hien " + s + " lan");
  60. }
  61.  
  62. //Q3
  63. function q3() {
  64. var n = prompt("Nhap so nguyen duong (nho hon 10000): ");
  65. var a = parseInt(n / 1000);
  66. var b = parseInt(((n % 1000) / 100));
  67. var c = parseInt(((n % 100) / 10));
  68. var d = parseInt((n % 10));
  69. alert("Chu so lon nhat la " + max(a,b,c,d));
  70. // Co the dung ham co san Math.max
  71. /*
  72. alert("Chu so lon nhat la " + Math.max(a,b,c,d));
  73. */
  74. }
  75.  
  76. function max(a, b, c, d) {
  77. var max;
  78. max = a > b ? a : b;
  79. max = max > c ? max : c;
  80. max = max > d ? max : d;
  81. return max;
  82. }
  83.  
  84. //Q4
  85. function q4() {
  86. var n = prompt("Nhap kich thuoc ma tran vuong: ");
  87. alert("Nhap du lieu cho ma tran");
  88. var i,j;
  89. var a = [];
  90. for(i = 0; i < n; i++) {
  91. var a1 = [];
  92. for(j = 0; j < n; j++) {
  93. a1[j] = prompt("a["+(i+1)+"]["+(j+1)+"] = ");
  94. }
  95. a[i] = a1;
  96. }
  97. var matran = "";
  98. for(i = 0; i < n; i++) {
  99. matran += "\n\n";
  100. for(j = 0; j < n; j++) {
  101. matran += a[i][j] + " ";
  102. }
  103. }
  104. alert("Ma tran:\n" + matran);
  105. var min = a[0][0];
  106. for(i = 0; i < n; i++) {
  107. for(j = 0; j < n; j++) {
  108. if(a[i][j] < min) {
  109. min = a[i][j];
  110. }
  111. }
  112. }
  113. alert("Phan tu be nhat cua ma tran la " + min);
  114. }
  115.  
  116. //Q5
  117. function q5() {
  118. var a = prompt("Nhap a: ");
  119. var b = prompt("Nhap b: ");
  120. while(a != b) {
  121. if(a > b) {
  122. a = a - b;
  123. } else {
  124. b = b - a;
  125. }
  126. }
  127. alert("USCLN cua 2 so da nhap la " + a);
  128. }
  129.  
  130. //Q6
  131. function q6() {
  132. var n = prompt("Nhap so phan tu (n <= 50): ");
  133. alert("Nhap day so");
  134. var i, j;
  135. var a = [];
  136. for(i = 0; i < n; i++) {
  137. a[i] = prompt("Phan tu thu " + (i+1));
  138. }
  139.  
  140. alert("Day so vua nhap la");
  141. var day = "";
  142. for(i = 0; i < n; i++) {
  143. day += a[i] + " ";
  144. }
  145. alert(day);
  146.  
  147. /* Sap xep day theo chieu tang dan */
  148. for(i = 0; i < (n - 1); i++) {
  149. for(j = (i + 1); j < n; j++) {
  150. if(a[i] > a[j]) {
  151. var t = a[i];
  152. a[i] = a[j];
  153. a[j] = t;
  154. }
  155. }
  156. }
  157. alert("Phan tu lon thu hai trong day la " + a[n-2]);
  158. }
  159.  
  160. //Q7
  161. function q7() {
  162. var n = prompt("Nhap so nguyen duong (nho hon 10000): ");
  163. var a = parseInt(n / 1000);
  164. var b = parseInt(((n % 1000) / 100));
  165. var c = parseInt(((n % 100) / 10));
  166. var d = parseInt((n % 10));
  167. alert("Tong cac chu so la " + (a + b + c + d));
  168. }
  169.  
  170. //Q8
  171. function q8() {
  172. alert("Khong co cau 8 Ọ_Ọ");
  173. }
  174.  
  175. //Q9
  176. function q9() {
  177. var s = "Bang cuu chuong tu 1 den 10\n";
  178. var i, j;
  179. for(i = 1; i <= 10; i++) {
  180. s += "\n\n";
  181. for(j = 1; j <= 10; j++) {
  182. s += (i * j) + " ";
  183. }
  184. }
  185. alert(s);
  186. }
  187.  
  188. //Q10
  189. function q10() {
  190. var n = prompt("Nhap so phan tu cua day n = ");
  191. var a = [];
  192. alert("Nhap gia tri cho tung phan tu");
  193. var i;
  194. for(i = 0; i < n; i++) {
  195. a[i] = parseInt(prompt("a[" + (i+1) + "] = "));
  196. }
  197. var ketqua = true;
  198. for(i = 1; i < n - 1; i++) {
  199. if(a[i] != (a[i-1] + a[i+1]) / 2) {
  200. ketqua = false;
  201. }
  202. }
  203.  
  204. if(ketqua) {
  205. alert("Day vua nhap la cap so cong");
  206. } else {
  207. alert("Day vua nhap khong la cap so cong");
  208. }
  209. }
  210.  
  211. //Q11
  212. function q11() {
  213. var n = prompt("Nhap so hang n = ");
  214. var i, j;
  215. var s = "";
  216. for(i = 0; i < n; i++) {
  217. for(j = 0; j <= i; j++) {
  218. s += "* ";
  219. }
  220. s += "\n";
  221. }
  222. alert(s);
  223. }
  224.  
  225. //Q12
  226. function q12() {
  227. var n = prompt("Nhap kich thuoc ma tran n = ");
  228. alert("Nhap du lieu cho ma tran");
  229. var i,j;
  230. var a = [];
  231. for(i = 0; i < n; i++) {
  232. var a1 = [];
  233. for(j = 0; j < n; j++) {
  234. a1[j] = prompt("a["+(i+1)+"]["+(j+1)+"] = ");
  235. }
  236. a[i] = a1;
  237. }
  238. var k = prompt("Nhap k = ");
  239. var matran = "";
  240. for(i = 0; i < n; i++) {
  241. matran += "\n\n";
  242. for(j = 0; j < n; j++) {
  243. matran += a[i][j] + " ";
  244. }
  245. }
  246. alert("Ma tran:\n" + matran);
  247.  
  248. /* Tinh tong duong cheo chinh */
  249. var sum = 0;
  250. for(i = 0; i < n; i++) {
  251. sum += parseInt(a[i][i]);
  252. }
  253. alert("Tong cac phan tu tren duong cheo chinh la " + sum);
  254.  
  255. /* so lan xuat hien cua k */
  256. var sl = 0;
  257. for(i = 0; i < n; i++) {
  258. for(j = 0; j < n; j++) {
  259. if(a[i][j] == k) {
  260. sl++;
  261. }
  262. }
  263. }
  264. alert("So " +k+" xuat hien " +sl+ " lan trong ma tran");
  265. }
  266.  
  267. //Q13
  268. function q13() {
  269. var n = prompt("Nhap n = ");
  270. var i;
  271. var f = 0;
  272. for(i = 1; i <= n; i++) {
  273. if(i % 2 == 0) {
  274. f -= 1/gt(i);
  275. } else f += 1/ gt(i);
  276. }
  277. alert("Gia tri cua bieu thuc f la " + f);
  278. }
  279.  
  280. function gt(x) {
  281. var kq = 1;
  282. var i;
  283. for(i = 2; i <= x; i++) {
  284. kq *= i;
  285. }
  286. return kq;
  287. }
  288.  
  289. //Q14
  290. function q14() {
  291. var n = prompt("Nhap so phan tu cua day n = ");
  292. var a = [];
  293. alert("Nhap gia tri cho tung phan tu");
  294. var i;
  295. for(i = 0; i < n; i++) {
  296. a[i] = prompt("a[" + (i+1) + "] = ");
  297. }
  298. alert("Day vua nhap la:");
  299. var s = "";
  300. for(i = 0; i < n; i++) {
  301. s += a[i] + " ";
  302. }
  303. alert(s);
  304.  
  305. /* Kiem tra day dan dau */
  306. var ketqua = true;
  307. var begin;
  308. for(i = 0; i < n - 1; i++) {
  309. if(a[i] >= 0 && a[i+1] >= 0) {
  310. ketqua = false;
  311. }
  312.  
  313. if(a[i] < 0 && a[i+1] < 0) {
  314. ketqua = false;
  315. }
  316. }
  317. if(ketqua) {
  318. alert("Day vua nhap la day dan dau");
  319. } else {
  320. alert("Day vua nhap khong la day dan dau");
  321. }
  322. }
  323.  
  324. //Q15
  325. function q15() {
  326. var n = prompt("Nhap so hang n = ");
  327. var i,j;
  328. var s = "";
  329. for(i = 1; i <= n; i++) {
  330. for(j = 1; j <= n; j++) {
  331. if((n - j) < i) {
  332. s += "*";
  333. } else {
  334. s += "-";
  335. }
  336. }
  337. s += "\n";
  338. }
  339. alert(s);
  340. }
  341.  
  342. //Q16
  343. function q16() {
  344. var n = prompt("Nhap kich thuoc ma tran n = ");
  345. alert("Nhap du lieu cho ma tran");
  346. var i,j;
  347. var a = [];
  348. for(i = 0; i < n; i++) {
  349. var a1 = [];
  350. for(j = 0; j < n; j++) {
  351. a1[j] = prompt("a["+(i+1)+"]["+(j+1)+"] = ");
  352. }
  353. a[i] = a1;
  354. }
  355. var matran = "";
  356. for(i = 0; i < n; i++) {
  357. matran += "\n\n";
  358. for(j = 0; j < n; j++) {
  359. matran += a[i][j] + " ";
  360. }
  361. }
  362. alert("Ma tran:\n" + matran);
  363.  
  364. /* Tinh tong duong cheo chinh */
  365. var min = a[0][0];
  366. for(i = 1; i < n; i++) {
  367. if(a[i][i] < min) {
  368. min = a[i][i];
  369. }
  370. }
  371. alert("Phan tu nho nhat tren duong cheo chinh la " + min);
  372. }
  373.  
  374. //Q17
  375. function q17() {
  376. var n = prompt("Nhap n = ");
  377. var x = prompt("Nhap x = ");
  378. var i;
  379. var f = 0;
  380. for(i = 1; i <= n; i++) {
  381. if(i % 2 != 0) {
  382. f += Math.sin(i*x);
  383. } else {
  384. f += Math.cos(i*x);
  385. }
  386. }
  387. alert("Gia tri cua bieu thuc la f = " + f);
  388. }
  389.  
  390. //Q18
  391. function q18() {
  392. var n = prompt("Nhap so phan tu cua day n = ");
  393. var a = [];
  394. alert("Nhap gia tri cho tung phan tu");
  395. var i;
  396. var avg = 0;
  397. for(i = 0; i < n; i++) {
  398. a[i] = prompt("a[" + (i+1) + "] = ");
  399. avg += parseInt(a[i]);
  400. }
  401. alert("Day vua nhap la:");
  402. var s = "";
  403. var max = a[0];
  404. for(i = 0; i < n; i++) {
  405. s += a[i] + " ";
  406. if(a[i] > max) {
  407. max = a[i];
  408. }
  409. }
  410. alert(s);
  411. alert("Trung binh cong cac phan tu trong day la " + avg/n);
  412. alert("So lon nhat trong day la " + max);
  413. }
  414.  
  415. //Q19
  416. function q19() {
  417. var n = prompt("Nhap so nguyen duong n = ");
  418. var s = "";
  419. var i = 0;
  420. while(n != 0) {
  421. var a = n % 10;
  422. if(a % 2 != 0) {
  423. s = a + " " + s;
  424. }
  425. n = parseInt(n/10);
  426. }
  427. alert("Cac chu so le trong so vua nhap la: " + s);
  428. }
  429.  
  430. //Q20
  431. function q20() {
  432. var n = prompt("Nhap kich thuoc ma tran n = ");
  433. alert("Nhap du lieu cho ma tran");
  434. var i,j;
  435. var a = [];
  436. for(i = 0; i < n; i++) {
  437. var a1 = [];
  438. for(j = 0; j < n; j++) {
  439. a1[j] = prompt("a["+(i+1)+"]["+(j+1)+"] = ");
  440. }
  441. a[i] = a1;
  442. }
  443. var matran = "";
  444. for(i = 0; i < n; i++) {
  445. matran += "\n\n";
  446. for(j = 0; j < n; j++) {
  447. matran += a[i][j] + " ";
  448. }
  449. }
  450. alert("Ma tran:\n" + matran);
  451.  
  452. /* Tinh tong duong cheo chinh */
  453. var avg = 0;
  454. for(i = 0; i < n; i++) {
  455. avg += parseInt(a[i][i]);
  456. }
  457. alert("Trung binh cong cac phan tu tren duong cheo chinh la " + avg/n);
  458. }
  459. </script>
  460. </head>
  461. <body>
  462. <div id="question">Câu 1 <button onclick="q1()">Run</button></div>
  463. <div id="question">Câu 2 <button onclick="q2()">Run</button></div>
  464. <div id="question">Câu 3 <button onclick="q3()">Run</button></div>
  465. <div id="question">Câu 4 <button onclick="q4()">Run</button></div>
  466. <div id="question">Câu 5 <button onclick="q5()">Run</button></div>
  467. <div id="question">Câu 6 <button onclick="q6()">Run</button></div>
  468. <div id="question">Câu 7 <button onclick="q7()">Run</button></div>
  469. <div id="question">Câu 8 <button onclick="q8()">Run</button></div>
  470. <div id="question">Câu 9 <button onclick="q9()">Run</button></div>
  471. <div id="question">Câu 10 <button onclick="q10()">Run</button></div>
  472. <div id="question">Câu 11 <button onclick="q11()">Run</button></div>
  473. <div id="question">Câu 12 <button onclick="q12()">Run</button></div>
  474. <div id="question">Câu 13 <button onclick="q13()">Run</button></div>
  475. <div id="question">Câu 14 <button onclick="q14()">Run</button></div>
  476. <div id="question">Câu 15 <button onclick="q15()">Run</button></div>
  477. <div id="question">Câu 16 <button onclick="q16()">Run</button></div>
  478. <div id="question">Câu 17 <button onclick="q17()">Run</button></div>
  479. <div id="question">Câu 18 <button onclick="q18()">Run</button></div>
  480. <div id="question">Câu 19 <button onclick="q19()">Run</button></div>
  481. <div id="question">Câu 20 <button onclick="q20()">Run</button></div>
  482. </body>
  483. </html>
Advertisement
Add Comment
Please, Sign In to add comment
Advertisement
Public Pastes
Advertisement
We use cookies for various purposes including analytics. By continuing to use Pastebin, you agree to our use of cookies as described in the Cookies Policy.  OK, I Understand
Not a member of Pastebin yet?
Sign Up, it unlocks many cool features!