Tudnátok segíteni C programozásban? Eddig ennyire jutottam. Hogyan tudnám ezt javítani?

Feladat: Egy vitorlás hajó által megtett útról egy olyan adathalmaz keletkezett, amelyben minden bejegyzés egy pozícióból és egy időtartamból áll. A pozíció egy kétdimenziós pont, melyen a hajó áthaladt, az időtartam pedig az az idő, ami alatt az előző pozíciótól az aktuális pozícióig elért. A pozíciók között (megfelelő közelítéssel) a hajó egyenesen haladt. A pontok euklideszi térben értelmezettek (laposföldön...), a koordináták méterben vannak megadva (azonban nem feltétlenül egész számok). Az időtartam óra, perc és másodperc tagból áll.

Hozd létre a bejegyzések tárolásához szükséges struktúrákat az alábbi azonosítókkal:

point

x (valós)

y (valós)

time

hour (egész)

minute (egész)

second (egész)

record

position (point)

interval (time)

Írj függvényt in_seconds névvel, mely egy time típussal megadott időintervallumot átvált az eltelt másodpercek számára!

Írd meg a distance nevű függvényt, mely két point típusú pont közötti távolsággal tér vissza!

Írj függvényt average_speed névvel, mely record típusú elemekből álló tömböt kap paraméterként, és visszatér az utazás átlagsebességével m/s mértékegységben (az átlagsebesség a szakaszok összhosszának és az összes eltelt időnek a hányadosa). A tömb első elemének interval tagja irreleváns, hiszen az első pont elérése előtti eseményekre nem vagyunk kíváncsiak.

Kódom:

#include <stdio.h>

struct point {

double x;

double y;

};

struct time {

int hour;

int minute;

int second;

};

struct record {

struct point position;

struct time interval;

};

int in_seconds(struct time t) {

return t.hour * 3600 + t.minute * 60 + t.second;

}

double distance(struct point p1, struct point p2) {

double dx = p2.x - p1.x;

double dy = p2.y - p1.y;

return sqrt(dx * dx + dy * dy);

}

double average_speed(struct record records[], int num_records) {

double total_distance = 0.0;

int total_time_seconds = 0;

for (int i = 1; i < num_records; i++) {

total_distance += distance(records[i - 1].position, records[i].position);

total_time_seconds += in_seconds(records[i].interval);

}

if (total_time_seconds == 0) {

return 0.0;

} else {

return total_distance / total_time_seconds;

}

}

int main() {

struct record records[] = {

{{0.0, 0.0}, {1, 0, 0}},

{{3.0, 4.0}, {0, 30, 0}},

{{6.0, 8.0}, {1, 0, 0}},

{{10.0, 10.0}, {0, 45, 0}}

};

int num_records = sizeof(records) / sizeof(records[0]);

double avg_speed = average_speed(records, num_records);

printf("Az átlagsebesség: %.2f m/s\n", avg_speed);

return 0;

}

fügvény:#include <math.h>

// Függvény az időintervallum másodpercekre átváltásához

int in_seconds(time t) {

return t.hour * 3600 + t.minute * 60 + t.second;

}

// Függvény a két pont közötti távolság kiszámításához

double distance(point p1, point p2) {

return sqrt(pow(p1.x - p2.x, 2) + pow(p1.y - p2.y, 2));

}

// Függvény az utazás átlagsebességének kiszámításához

double average_speed(record records[], int size) {

double total_distance = 0.0;

int total_time_seconds = 0;

for (int i = 1; i < size; i++) {

total_distance += distance(records[i].position, records[i - 1].position);

total_time_seconds += in_seconds(records[i].interval);

}

if (total_time_seconds == 0) {

// Ne osszunk nullával

return 0.0;

}

return total_distance / total_time_seconds;

}

hiba: Compiler error

source.c:5:16: error: unknown type name ‘time’; did you mean ‘time_t’?

source.c:10:17: error: unknown type name ‘point’

source.c:10:27: error: unknown type name ‘point’

source.c:15:22: error: unknown type name ‘record’

environment.c:2:25: error: unknown type name ‘time’; did you mean ‘time_t’?

environment.c:7:26: error: unknown type name ‘point’

environment.c:7:35: error: unknown type name ‘point’

environment.c:14:31: error: unknown type name ‘record’

environment.c: In function ‘main’:

environment.c:50:17: error: unknown type name ‘time’; did you mean ‘time_t’?

environment.c:51:18: error: request for member ‘hour’ in something not a structure or union

environment.c:52:18: error: request for member ‘minute’ in something not a structure or union

environment.c:53:18: error: request for member ‘second’ in something not a structure or union

environment.c:54:230: error: implicit declaration of function ‘in_seconds’ [-Wimplicit-function-declaration]

environment.c:54:381: error: implicit declaration of function ‘_correct_in_seconds’ [-Wimplicit-function-declaration]

environment.c:65:9: error: unknown type name ‘point’

environment.c:66:13: warning: braces around scalar initializer

environment.c:66:13: note: (near initialization for ‘test_cases[0][0]’)

environment.c:66:18: error: excess elements in scalar initializer

environment.c:66:18: note: (near initialization for ‘test_cases[0][0]’)

environment.c:66:13: warning: braces around scalar initializer

environment.c:66:13: note: (near initialization for ‘test_cases[0][1]’)

environment.c:66:28: error: excess elements in scalar initializer

environment.c:66:28: note: (near initialization for ‘test_cases[0][1]’)

environment.c:67:13: warning: braces around scalar initializer

environment.c:67:13: note: (near initialization for ‘test_cases[1][0]’)

environment.c:67:18: error: excess elements in scalar initializer

environment.c:67:18: note: (near initialization for ‘test_cases[1][0]’)

environment.c:67:13: warning: braces around scalar initializer

environment.c:67:13: note: (near initialization for ‘test_cases[1][1]’)

environment.c:67:26: error: excess elements in scalar initializer

environment.c:67:26: note: (near initialization for ‘test_cases[1][1]’)

environment.c:68:13: warning: braces around scalar initializer

environment.c:68:13: note: (near initialization for ‘test_cases[2][0]’)

environment.c:68:21: error: excess elements in scalar initializer

environment.c:68:21: note: (near initialization for ‘test_cases[2][0]’)

environment.c:68:13: warning: braces around scalar initializer

environment.c:68:13: note: (near initialization for ‘test_cases[2][1]’)

environment.c:68:34: error: excess elements in scalar initializer

environment.c:68:34: note: (near initialization for ‘test_cases[2][1]’)

environment.c:69:13: warning: braces around scalar initializer

environment.c:69:13: note: (near initialization for ‘test_cases[3][0]’)

environment.c:69:20: error: excess elements in scalar initializer

environment.c:69:20: note: (near initialization for ‘test_cases[3][0]’)

environment.c:69:13: warning: braces around scalar initializer

environment.c:69:13: note: (near initialization for ‘test_cases[3][1]’)

environment.c:69:32: error: excess elements in scalar initializer

environment.c:69:32: note: (near initialization for ‘test_cases[3][1]’)

environment.c:70:25: error: request for member ‘x’ in something not a structure or union

environment.c:71:25: error: request for member ‘y’ in something not a structure or union

environment.c:72:25: error: request for member ‘x’ in something not a structure or union

environment.c:73:25: error: request for member ‘y’ in something not a structure or union

environment.c:77:13: error: unknown type name ‘point’

environment.c:82:26: error: request for member ‘x’ in something not a structure or union

environment.c:82:36: error: request for member ‘y’ in something not a structure or union

environment.c:82:46: error: request for member ‘x’ in something not a structure or union

environment.c:82:56: error: request for member ‘y’ in something not a structure or union

environment.c:85:17: error: unknown type name ‘point’

environment.c:85:34: error: request for member ‘x’ in something not a structure or union

environment.c:85:44: error: request for member ‘y’ in something not a structure or union

environment.c:85:38: error: excess elements in scalar initializer

environment.c:85:38: note: (near initialization for ‘p’)

environment.c:86:17: error: unknown type name ‘point’

environment.c:86:34: error: request for member ‘x’ in something not a structure or union

environment.c:86:44: error: request for member ‘y’ in something not a structure or union

environment.c:86:38: error: excess elements in scalar initializer

environment.c:86:38: note: (near initialization for ‘q’)

environment.c:88:233: error: implicit declaration of function ‘distance’ [-Wimplicit-function-declaration]

environment.c:88:384: error: implicit declaration of function ‘_correct_distance’ [-Wimplicit-function-declaration]

environment.c:100:9: error: unknown type name ‘record’

environment.c:100:9: warning: braces around scalar initializer

environment.c:100:9: note: (near initialization for ‘t[0]’)

environment.c:100:9: warning: braces around scalar initializer

environment.c:100:9: note: (near initialization for ‘t[0]’)

environment.c:100:29: error: excess elements in scalar initializer

environment.c:100:29: note: (near initialization for ‘t[0]’)

environment.c:100:9: warning: braces around scalar initializer

environment.c:100:9: note: (near initialization for ‘t[0]’)

environment.c:100:37: error: excess elements in scalar initializer

environment.c:100:37: note: (near initialization for ‘t[0]’)

environment.c:100:40: error: excess elements in scalar initializer

environment.c:100:40: note: (near initialization for ‘t[0]’)

environment.c:100:33: error: excess elements in scalar initializer

environment.c:100:33: note: (near initialization for ‘t[0]’)

environment.c:100:9: warning: braces around scalar initializer

environment.c:100:9: note: (near initialization for ‘t[1]’)

environment.c:100:9: warning: braces around scalar initializer

environment.c:100:9: note: (near initialization for ‘t[1]’)

environment.c:100:50: error: excess elements in scalar initializer

environment.c:100:50: note: (near initialization for ‘t[1]’)

environment.c:100:9: warning: braces around scalar initializer

environment.c:100:9: note: (near initialization for ‘t[1]’)

environment.c:100:58: error: excess elements in scalar initializer

environment.c:100:58: note: (near initialization for ‘t[1]’)

environment.c:100:61: error: excess elements in scalar initializer

environment.c:100:61: note: (near initialization for ‘t[1]’)

environment.c:100:54: error: excess elements in scalar initializer

environment.c:100:54: note: (near initialization for ‘t[1]’)

environment.c:101:225: error: implicit declaration of function ‘average_speed’ [-Wimplicit-function-declaration]

environment.c:101:376: error: implicit declaration of function ‘_correct_average_speed’ [-Wimplicit-function-declaration]

environment.c:111:9: error: unknown type name ‘record’

environment.c:111:9: warning: braces around scalar initializer

environment.c:111:9: note: (near initialization for ‘t[0]’)

environment.c:111:9: warning: braces around scalar initializer

environment.c:111:9: note: (near initialization for ‘t[0]’)

environment.c:111:30: error: excess elements in scalar initializer

environment.c:111:30: note: (near initialization for ‘t[0]’)

environment.c:111:9: warning: braces around scalar initializer

environment.c:111:9: note: (near initialization for ‘t[0]’)

environment.c:111:43: error: excess elements in scalar initializer

environment.c:111:43: note: (near initialization for ‘t[0]’)

environment.c:111:46: error: excess elements in scalar initializer

environment.c:111:46: note: (near initialization for ‘t[0]’)

environment.c:111:38: error: excess elements in scalar initializer

environment.c:111:38: note: (near initialization for ‘t[0]’)

environment.c:111:9: warning: braces around scalar initializer

environment.c:111:9: note: (near initialization for ‘t[1]’)

environment.c:111:9: warning: braces around scalar initializer

environment.c:111:9: note: (near initialization for ‘t[1]’)

environment.c:111:58: error: excess elements in scalar initializer

environment.c:111:58: note: (near initialization for ‘t[1]’)

environment.c:111:9: warning: braces around scalar initializer

environment.c:111:9: note: (near initialization for ‘t[1]’)

environment.c:111:70: error: excess elements in scalar initializer

environment.c:111:70: note: (near initialization for ‘t[1]’)

environment.c:111:73: error: excess elements in scalar initializer

environment.c:111:73: note: (near initialization for ‘t[1]’)

environment.c:111:66: error: excess elements in scalar initializer

environment.c:111:66: note: (near initialization for ‘t[1]’)

environment.c:111:9: warning: braces around scalar initializer

environment.c:111:9: note: (near initialization for ‘t[2]’)

environment.c:111:9: warning: braces around scalar initializer

environment.c:111:9: note: (near initialization for ‘t[2]’)

environment.c:111:86: error: excess elements in scalar initializer

environment.c:111:86: note: (near initialization for ‘t[2]’)

environment.c:111:9: warning: braces around scalar initializer

environment.c:111:9: note: (near initialization for ‘t[2]’)

environment.c:111:99: error: excess elements in scalar initializer

environment.c:111:99: note: (near initialization for ‘t[2]’)

environment.c:111:103: error: excess elements in scalar initializer

environment.c:111:103: note: (near initialization for ‘t[2]’)

environment.c:111:95: error: excess elements in scalar initializer

environment.c:111:95: note: (near initialization for ‘t[2]’)

environment.c:122:9: error: unknown type name ‘record’

environment.c:125:17: error: request for member ‘position’ in something not a structure or union

environment.c:126:17: error: request for member ‘position’ in something not a structure or union

environment.c:127:17: error: request for member ‘interval’ in something not a structure or union

environment.c:128:17: error: request for member ‘interval’ in something not a structure or union

environment.c:129:17: error: request for member ‘interval’ in something not a structure or union