Statistics

Problem Statement for "TypoCoderDiv2"

Problem Statement

TypoCoder is a programming contest like TopCoder. TypoCoder also has a rating system. There are two types of coders in TypoCoder: brown coders and ciel coders. A brown coder is a coder whose rating is greater than or equal to 1200. A ciel coder is a coder whose rating is less than 1200.

Whenever a new contestant joins TypoCoder, their rating is 500. Cat Lower joined TypoCoder and then competed in some contests. You are given a int[] rating. For each i (0-based index), rating[i] is Cat Lower's rating after he competed in (i+1) contests.

Return the number of times Cat Lower changed his color (i.e., changed from being a ciel coder to being a brown coder or back).

Definition

Class:
TypoCoderDiv2
Method:
count
Parameters:
int[]
Returns:
int
Method signature:
int count(int[] rating)
(be sure your method is public)

Constraints

  • rating will contain between 1 and 50 elements, inclusive.
  • Each element of rating will be between 0 and 4000, inclusive.

Examples

  1. {1000,1200,1199}

    Returns: 2

    After the first contest Cat Lower was still a ciel coder. After the second contest his new rating was 1200 which made him a brown coder. (This was the first color change.) After the third contest his new rating was 1199 which made him a ciel coder again. (This was the second color change.)

  2. {1500,2200,900,3000}

    Returns: 3

    The color changed after the first, the third and the fourth competition.

  3. {600,700,800,900,1000,1100,1199}

    Returns: 0

    Cat Lower wasn't a brown coder at any time in this case.

  4. {0,4000,0,4000,4000,0,0}

    Returns: 4

  5. {575,1090,3271,2496,859,2708,3774,2796,1616,2552,3783,2435,1111,526,562}

    Returns: 4

  6. {1065}

    Returns: 0

  7. {692,1309}

    Returns: 1

  8. {2116,1841,3089}

    Returns: 1

  9. {551,3856,252,2628}

    Returns: 3

  10. {2501,3156,1187,1606,928}

    Returns: 4

  11. {645,1426,1806,1771,2899,1601}

    Returns: 1

  12. {695,1797,2046,939,1465,3798,1653}

    Returns: 3

  13. {433,309,850,1926,118,3545,1977,3973}

    Returns: 3

  14. {593,1894,168,1018,2829,2163,491,2551,2210}

    Returns: 5

  15. {2208,3594,489,348,244,3268,1946,2441,3176,3311}

    Returns: 3

  16. {845,2273,3754,3689,689,876,1851,109,1388,1566,2525}

    Returns: 5

  17. {793,3500,3810,496,204,3406,3383,467,3860,1386,1096,517,3088,2341}

    Returns: 7

  18. {3143,1602,119,2588,3081,2725,2755,3334,3279,1807,1431,2462,1108,1965,1889,1575,1395}

    Returns: 5

  19. {3259,778,1416,1746,2648,2937,10,3254,1688,2095,350,74,2528,2875,2980,1112,322,2795,1884,89}

    Returns: 10

  20. {2294,648,3620,2681,2718,3904,1849,3107,693,1738,2671,3187,2919,207,3225,677,1967,1148,2725,3744,1936,362,1437}

    Returns: 13

  21. {196,1446,2615,3688,3322,1956,3901,2761,1801,68,1759,1157,3987,1734,1685,1989,826,1529,2837,781,1397,1209,1030,2940,1532,3177}

    Returns: 11

  22. {1739,3939,1847,996,2778,3542,889,3083,2453,1712,2037,2937,465,1899,3081,3682,3867,89,630,3619,2253,2429,3981,401,3724,2168,1056,2532,2512}

    Returns: 13

  23. {755,1016,936,1754,2862,1131,3102,2990,2051,2031,291,554,538,97,2619,276,3556,3988,3057,3892,2586,3779,3754,3408,3200,1250,608,3738,3033,3996,2032,1914}

    Returns: 9

  24. {1200,651,1371,2275,3130,2937,988,319,1194,3265,160,1471,1286,2435,1827,3556,973,3295,724,2549,779,1973,437,486,1817,1001,902,444,2229,3287,580,3333,869,1772,1154}

    Returns: 22

  25. {2195,703,38,2361,2474,3934,992,310,3995,1429,1142,2570,1101,491,2133,3903,566,697,3971,286,3579,3122,2581,2098,2827,2496,422,2643,3318,2127,3795,3647,2096,1584,126,2871,3749,239}

    Returns: 18

  26. {475,2498,3649,239,487,2334,1738,215,3498,2856,2687,1181,1565,1370,2286,2043,3696,2970,2984,3549,1901,2100,709,3694,221,25,1936,342,3881,2681,3896,1183,1828,2707,822,1438,2442,3963,957,2142,162}

    Returns: 20

  27. {3382,1175,1533,3432,3190,283,1022,2779,1075,1054,2607,2209,1406,312,3229,1060,1519,2113,3065,2447,3976,2995,2771,3174,2229,1977,3774,2821,2609,2356,3675,3144,2908,1033,1132,1280,2701,878,76,1866,2662,1955,338,1807}

    Returns: 17

  28. {1443,878,2714,1006,3120,3396,1164,2443,3450,1724,3267,3119,3324,1033,2141,711,3845,2402,1619,57,2454,1008,2941,1575,2180,2356,980,432,88,497,2932,3444,3159,2195,1900,2795,3539,3686,2957,57,1488,1320,939,3743,818,2876,1351}

    Returns: 23

  29. {1108,529,1597,3224,3161,3963,3715,3987,3911,2047,3765,2658,3483,228,3953,1768,664,2350,2529,3270,1603,2363,607,3846,1253,1092,2431,2176,1531,734,87,1787,3847,1504,3153,1938,3458,1970,2598,442,2889,3758,1199,194,2,2752,552,428,3276,3470}

    Returns: 17

  30. {3078,3675,2343,607,3939,3427,534,2602,1668,3320,3872,1981,2777,3502,2691,1749,6,2241,809,1295,1866,386,3183,2239,3927,1682,3992,1327,1553,1506,2954,1276,2484,524,1298,3542,2912,1393,3248,895,3530,3199,1800,1258,1496,506,3495,463,2163,1609}

    Returns: 19

  31. {3984,2402,3686,919,187,989,725,2583,2809,609,1949,3213,2159,1590,1432,3717,1427,2527,562,2760,1533,175,1973,2232,3158,3297,1960,1041,906,1036,2425,1326,2241,1272,1857,2212,923,641,2400,393,658,3301,304,333,558,1151,959,617,2759,3892}

    Returns: 17

  32. {77,1438,492,1222,3894,2708,267,705,594,2357,661,3794,2914,3713,1877,1211,3561,2356,3019,3628,801,3989,1711,119,761,2835,300,58,2099,1901,2282,1706,1698,1573,2390,2673,1634,1070,106,2152,2484,3159,2450,769,3517,603,527,2462,3413,2656}

    Returns: 19

  33. {591,2644,1547,1796,765,3439,1965,19,253,2918,1790,586,628,1101,1844,2715,936,571,2064,3780,3527,1726,667,1353,2581,3773,593,1916,2457,355,2933,149,381,2602,1468,1241,3125,405,312,3483,3338,2736,2613,3278,714,1912,1067,2678,3530,1198}

    Returns: 24

  34. {1817,3779,3218,2129,63,3981,3781,574,325,1989,3594,2308,2075,2424,1071,2439,3253,270,1515,3436,3443,2156,887,2247,1829,3665,691,3741,532,766,2347,1846,2720,203,3964,1224,1282,1289,1781,103,2988,3863,483,2737,209,1762,1434,731,1388,2647}

    Returns: 25

  35. {3302,1509,1386,3739,2752,2868,1468,3677,1867,154,3554,2254,3663,712,3484,3548,235,3759,2381,1315,2916,3649,72,2338,3787,784,1553,3728,618,1638,3416,19,1727,2535,2801,1837,3416,406,3181,3372,462,3792,3710,2671,2713,2160,184,619,1578,327}

    Returns: 22

  36. {0}

    Returns: 0

  37. {4000}

    Returns: 1

  38. {1199}

    Returns: 0

  39. {1200}

    Returns: 1

  40. {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}

    Returns: 0

  41. {4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000,4000}

    Returns: 1

  42. {1200,1199,1200,1199,1200,1199,1200,1199,1200,1199,1200,1199,1200,1199,1200,1199,1200,1199,1200,1199,1200,1199,1200,1199,1200,1199,1200,1199,1200,1199,1200,1199,1200,1199,1200,1199,1200,1199,1200,1199,1200,1199,1200,1199,1200,1199,1200,1199,1200,1199}

    Returns: 50

  43. {1000 }

    Returns: 0

  44. {1500 }

    Returns: 1

  45. {2000 }

    Returns: 1

  46. {1400 }

    Returns: 1

  47. {1300, 100 }

    Returns: 2

  48. {1200 }

    Returns: 1

  49. {3000 }

    Returns: 1

  50. {1200, 1200 }

    Returns: 1

  51. {1222 }

    Returns: 1

  52. {1300 }

    Returns: 1

  53. {2500 }

    Returns: 1

  54. {1500, 2200, 900, 3000 }

    Returns: 3

  55. {1200, 1200, 500, 1300, 1200 }

    Returns: 3

  56. {1600 }

    Returns: 1

  57. {1575, 1090, 3271, 2496, 859, 2708, 3774, 2796, 1616, 2552, 3783, 2435, 1111, 526, 562 }

    Returns: 6

  58. {500, 1200, 1201, 1200 }

    Returns: 1

  59. {1200, 1200, 1200 }

    Returns: 1

  60. {1500, 100, 100, 100 }

    Returns: 2

  61. {1200, 0, 1200 }

    Returns: 3

  62. {1202 }

    Returns: 1

  63. {1200, 1199 }

    Returns: 2

  64. {1300, 600 }

    Returns: 2

  65. {1200, 1000 }

    Returns: 2

  66. {950 }

    Returns: 0

  67. {1201, 1201, 500 }

    Returns: 2

  68. {1300, 1000 }

    Returns: 2

  69. {575, 1090, 3271, 2496, 859, 2708, 3774, 2796, 1616, 2552, 3783, 2435, 1111, 526, 562 }

    Returns: 4

  70. {1201, 1199, 1199 }

    Returns: 2

  71. {1200, 1199, 1199 }

    Returns: 2

  72. {1201 }

    Returns: 1

  73. {1800 }

    Returns: 1

  74. {1201, 1201 }

    Returns: 1

  75. {1300, 700 }

    Returns: 2

This problem statement is the exclusive and proprietary property of TopCoder, Inc. Any unauthorized use or reproduction of this information without the prior written consent of TopCoder, Inc. is strictly prohibited. (c)2024, TopCoder, Inc. All rights reserved.
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