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{
"language": "C",
"slug": "c",
"active": true,
"blurb": "C is a small, general-purpose, imperative programming language with a static type system, scopes, and structures. It's typically used as an alternative to assembly programming, such as in operating systems.",
"version": 3,
"status": {
"concept_exercises": false,
"test_runner": true,
"representer": false,
"analyzer": false
},
"online_editor": {
"indent_style": "space",
"indent_size": 4,
"highlightjs_language": "c"
},
"test_runner": {
"average_run_time": 2.0
},
"files": {
"solution": [
"%{snake_slug}.c",
"%{snake_slug}.h"
],
"test": [
"test_%{snake_slug}.c"
],
"example": [
".meta/example.c",
".meta/example.h"
],
"exemplar": [
".meta/exemplar.c",
".meta/exemplar.h"
]
},
"exercises": {
"concept": [],
"practice": [
{
"slug": "hello-world",
"name": "Hello World",
"uuid": "ee307061-5bc2-439c-8815-abd730aedc2d",
"practices": [],
"prerequisites": [],
"difficulty": 1,
"topics": [
"strings"
]
},
{
"slug": "armstrong-numbers",
"name": "Armstrong Numbers",
"uuid": "a4658ee9-b71c-4764-9652-7ed83d46516b",
"practices": [],
"prerequisites": [],
"difficulty": 1,
"topics": [
"control_flow_if_else_statements",
"control_flow_loops",
"logic",
"math"
]
},
{
"slug": "resistor-color",
"name": "Resistor Color",
"uuid": "75653d83-1a64-472c-ac43-49e87833c7f7",
"practices": [],
"prerequisites": [],
"difficulty": 1,
"topics": [
"arrays",
"enums",
"pointers"
]
},
{
"slug": "isogram",
"name": "Isogram",
"uuid": "b3c9d339-60bc-48fe-84ba-77cbc0017a89",
"practices": [],
"prerequisites": [],
"difficulty": 1,
"topics": [
"arrays",
"control_flow_if_else_statements",
"control_flow_loops",
"strings"
]
},
{
"slug": "hamming",
"name": "Hamming",
"uuid": "fa5e6bbb-2eaf-484f-a5c5-de5cb2a9175b",
"practices": [],
"prerequisites": [],
"difficulty": 2,
"topics": [
"arrays",
"control_flow_loops",
"strings"
]
},
{
"slug": "grains",
"name": "Grains",
"uuid": "53959d50-efad-4911-84de-b67efe1bee5f",
"practices": [],
"prerequisites": [],
"difficulty": 1,
"topics": [
"bitwise_operations",
"control_flow_loops",
"performance_optimizations"
]
},
{
"slug": "difference-of-squares",
"name": "Difference Of Squares",
"uuid": "9802cbc0-eb70-4840-b8ee-a228f1fc29ea",
"practices": [],
"prerequisites": [],
"difficulty": 1,
"topics": [
"control_flow_loops",
"math"
]
},
{
"slug": "square-root",
"name": "Square Root",
"uuid": "0400f52d-48ae-4300-a72e-32e8a08514d0",
"practices": [],
"prerequisites": [],
"difficulty": 4,
"topics": [
"bitwise_operations",
"control_flow_loops",
"math"
]
},
{
"slug": "grade-school",
"name": "Grade School",
"uuid": "68b1de28-7c3d-4e8c-ab51-7abe6779e187",
"practices": [],
"prerequisites": [],
"difficulty": 3,
"topics": [
"arrays",
"control_flow_if_else_statements",
"control_flow_loops",
"pointers",
"sorting",
"strings",
"structs"
]
},
{
"slug": "binary-search",
"name": "Binary Search",
"uuid": "db1771d2-afd8-4e01-9b6a-6be75029ef1d",
"practices": [],
"prerequisites": [],
"difficulty": 2,
"topics": [
"arrays",
"control_flow_if_else_statements",
"control_flow_loops",
"searching"
]
},
{
"slug": "rational-numbers",
"name": "Rational Numbers",
"uuid": "c3325db9-8067-4c2f-94b3-b5190b056d38",
"practices": [],
"prerequisites": [],
"difficulty": 5,
"topics": [
"math",
"structs"
]
},
{
"slug": "circular-buffer",
"name": "Circular Buffer",
"uuid": "c54a33a3-8c6f-4964-b770-b602d207fa20",
"practices": [],
"prerequisites": [],
"difficulty": 3,
"topics": [
"arrays",
"buffers",
"control_flow_if_else_statements",
"control_flow_loops",
"flexible_array_members",
"memory_management",
"pointers",
"structs"
]
},
{
"slug": "list-ops",
"name": "List Ops",
"uuid": "27a56356-d3ad-41d2-923c-2a58fbb36454",
"practices": [],
"prerequisites": [],
"difficulty": 3,
"topics": [
"arrays",
"control_flow_if_else_statements",
"control_flow_loops",
"flexible_array_members",
"function_pointers",
"memory_management",
"pointers",
"structs"
]
},
{
"slug": "pythagorean-triplet",
"name": "Pythagorean Triplet",
"uuid": "7b7c61f4-2849-46b7-9057-900bb6b95052",
"practices": [],
"prerequisites": [],
"difficulty": 4,
"topics": [
"arrays",
"control_flow_if_else_statements",
"control_flow_loops",
"flexible_array_members",
"memory_management",
"structs"
]
},
{
"slug": "saddle-points",
"name": "Saddle Points",
"uuid": "448f9137-4e58-4c26-9853-abe07f01c908",
"practices": [],
"prerequisites": [],
"difficulty": 4,
"topics": [
"arrays",
"control_flow_if_else_statements",
"control_flow_loops",
"flexible_array_members",
"memory_management",
"structs"
]
},
{
"slug": "allergies",
"name": "Allergies",
"uuid": "871f1c41-debd-4807-8ee5-bde54c3918f8",
"practices": [],
"prerequisites": [],
"difficulty": 4,
"topics": [
"control_flow_if_statements",
"control_flow_loops",
"memory_management",
"structs"
]
},
{
"slug": "phone-number",
"name": "Phone Number",
"uuid": "660d1586-c4e0-4537-94b5-455a983820f8",
"practices": [],
"prerequisites": [],
"difficulty": 4,
"topics": [
"control_flow_if_else_statements",
"control_flow_loops",
"memory_management",
"strings"
]
},
{
"slug": "clock",
"name": "Clock",
"uuid": "b868eeff-400c-4e46-8675-10d85c14b503",
"practices": [],
"prerequisites": [],
"difficulty": 2,
"topics": [
"control_flow_if_statements",
"preprocessor_x_macros_in_test",
"strings",
"text_formatting"
]
},
{
"slug": "sieve",
"name": "Sieve",
"uuid": "fb2530a3-cbbf-4ba9-88d0-203faac03e96",
"practices": [],
"prerequisites": [],
"difficulty": 2,
"topics": [
"control_flow_if_statements",
"math",
"memory_management"
]
},
{
"slug": "robot-simulator",
"name": "Robot Simulator",
"uuid": "e665da31-fda2-4bce-94e9-7d79dffdef14",
"practices": [],
"prerequisites": [],
"difficulty": 2,
"topics": [
"control_flow_if_statements",
"pointers",
"strings",
"structs",
"variable_argument_lists"
]
},
{
"slug": "pascals-triangle",
"name": "Pascals Triangle",
"uuid": "be19352f-1b63-4673-9a2d-e763ee807741",
"practices": [],
"prerequisites": [],
"difficulty": 1,
"topics": [
"control_flow_if_else_statements",
"math",
"memory_management"
]
},
{
"slug": "binary",
"name": "Binary",
"uuid": "8621177c-1068-4610-bf5b-26cf23340ae6",
"practices": [],
"prerequisites": [],
"difficulty": 1,
"topics": [
"control_flow_if_statements",
"control_flow_loops",
"math"
]
},
{
"slug": "queen-attack",
"name": "Queen Attack",
"uuid": "b0a152e9-5a45-41f9-bda0-427111d9a56c",
"practices": [],
"prerequisites": [],
"difficulty": 1,
"topics": [
"control_flow_if_statements",
"enums",
"functions",
"structs"
]
},
{
"slug": "linked-list",
"name": "Linked List",
"uuid": "58107e5f-8091-4429-9130-13f2c7dac9a9",
"practices": [],
"prerequisites": [],
"difficulty": 4,
"topics": [
"functions",
"lists",
"pointers",
"structs"
]
},
{
"slug": "darts",
"name": "Darts",
"uuid": "a579e471-86f3-4f29-82ca-e984a2cc8891",
"practices": [],
"prerequisites": [],
"difficulty": 1,
"topics": [
"control_flow_if_else_statements",
"logic",
"math"
]
},
{
"slug": "resistor-color-duo",
"name": "Resistor Color Duo",
"uuid": "93271b2e-8ad9-4e7d-8732-5988140e8c00",
"practices": [],
"prerequisites": [],
"difficulty": 1,
"topics": [
"arrays",
"enums"
]
},
{
"slug": "resistor-color-trio",
"name": "Resistor Color Trio",
"uuid": "6cd7bb9c-2817-4c44-8bef-5f2916b2db2d",
"practices": [],
"prerequisites": [],
"difficulty": 1,
"topics": [
"arrays",
"enums",
"structs"
]
},
{
"slug": "acronym",
"name": "Acronym",
"uuid": "1a8ba121-d2c4-4994-8c6b-610d8987346d",
"practices": [],
"prerequisites": [],
"difficulty": 1,
"topics": [
"control_flow_loops",
"memory_management",
"strings"
]
},
{
"slug": "gigasecond",
"name": "Gigasecond",
"uuid": "000340f6-e30d-4d49-a255-016237d6fe60",
"practices": [],
"prerequisites": [],
"difficulty": 1,
"topics": [
"dates"
]
},
{
"slug": "space-age",
"name": "Space Age",
"uuid": "fc03c7de-b0c6-4806-90bb-e9dda846e660",
"practices": [],
"prerequisites": [],
"difficulty": 1,
"topics": [
"functions"
]
},
{
"slug": "pangram",
"name": "Pangram",
"uuid": "6311b9f8-b438-4186-88b2-1e4f55275ccb",
"practices": [],
"prerequisites": [],
"difficulty": 3,
"topics": [
"control_flow_if_else_statements",
"control_flow_loops",
"strings"
]
},
{
"slug": "word-count",
"name": "Word Count",
"uuid": "1e4f4fcf-c32d-459f-8920-15ac56008666",
"practices": [],
"prerequisites": [],
"difficulty": 3,
"topics": [
"filtering",
"memory_management",
"strings",
"structs"
]
},
{
"slug": "rail-fence-cipher",
"name": "Rail Fence Cipher",
"uuid": "314dcf23-9cd9-4488-b53e-6dee1b303980",
"practices": [],
"prerequisites": [],
"difficulty": 4,
"topics": [
"arrays",
"control_flow_if_statements",
"strings"
]
},
{
"slug": "matching-brackets",
"name": "Matching Brackets",
"uuid": "cd573670-54da-4291-ab78-afd5d77fbeac",
"practices": [],
"prerequisites": [],
"difficulty": 5,
"topics": [
"control_flow_if_statements",
"recursion",
"stacks"
]
},
{
"slug": "nucleotide-count",
"name": "Nucleotide Count",
"uuid": "38669990-e1e6-4486-a603-575a135d1f5c",
"practices": [],
"prerequisites": [],
"difficulty": 2,
"topics": [
"control_flow_loops_switch_if_statements",
"memory_management",
"strings",
"text_formatting"
]
},
{
"slug": "rna-transcription",
"name": "Rna Transcription",
"uuid": "d12fea98-bf4e-476d-a91c-799fc98a1690",
"practices": [],
"prerequisites": [],
"difficulty": 2,
"topics": [
"control_flow_case_statements",
"control_flow_loops",
"strings"
]
},
{
"slug": "secret-handshake",
"name": "Secret Handshake",
"uuid": "119c20a6-849f-412e-b0a6-113a2cedc72d",
"practices": [],
"prerequisites": [],
"difficulty": 3,
"topics": [
"algorithms",
"control_flow_if_statements",
"strings"
]
},
{
"slug": "meetup",
"name": "Meetup",
"uuid": "a7baa53f-e828-457e-a456-ba3471494d80",
"practices": [],
"prerequisites": [],
"difficulty": 4,
"topics": [
"control_flow_if_statements",
"preprocessor_x_macros_in_test",
"strings",
"structs",
"time_functions"
]
},
{
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