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Identify and fix the errors in the following code:
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- #include <iostream>using namespace std; struct Person{ int weight ; int height;}; int main(){ Person fred; Person* ptr = &fred; fred.weight=190; fred.height=70; return 0;} What is a correct way to subtract 5 from fred's weight using the pointer variable 'ptr'?arrow_forward1#include 2 #include #include 4 #include 3 5 sem_t fork[3]; 6 7 void eat (int phil) { 8 printf("Philosopher %d is eating\n", phil); sleep (2); //time eating 9 10} 11 void philosopher (void * num) { int phil-*(int *)num; 12 13 printf("Philosopher %d wants to eat\n", phil); 14 sem_wait (&fork[phil]); 15 sem_wait (&fork [(phil+1)]); 16 eat (phil); 17 18 printf("Philosopher %d has finished eating\n",phil); sem_post(&fork [(phil+1)]); sem_post(&fork[phil]); 19 20} 21 int main(){ 22 int i, a[3]; 23 pthread_t tid[3]; for(i=0;i<3; i++) 24 25 sem_init(&fork[i],0,1); 26 for(i=0;i<3; i++){ 27 a[i]=i; 28 pthread_create(&tid[i], NULL, philosopher, (void *)&a[i]); 29 } 30 for(i=0;i<3;i++) 31 pthread_join(tid[i],NULL); 32} Fig.1 Figure 1 shows a program that tries to solve the dining philosophers' problem given that it only includes 3 philosophers who want to eat, where only 3 forks are available and each philosopher needs two forks. The outputs after running the program are given in Figure 2. In the…arrow_forward#include using namespace std; (а) class Fraction{ int x, y; public: Fraction (int a, int b) {x=a; y=b;}; int getx(){return x;} int gety() {return y;} } ; int main() Fraction n(3, 7); ++n; cout << "x/y: " <« n.getx()<< "/" « n.gety()<arrow_forward#include using namespace std3; int main() { int x-6; int y=103; int z=0; int q=1; Z+= X-- -ys q*=++z+y; cout<arrow_forward// Assume all libraries are included 3 void func (int a, int &b, int &c); // int main () { int i = 5, j = 4, k = 33; 4 7 %3D 8. func (i, j, k); func (j, i, k); cout << j « k << i <« endl; 10 11 12 13 return 0; 14 } // 15 16 void func (int a, int &b, int &c) { 17 18 = 2*c + b; 19 b a; 20 C = a + 3*b; } // 21 22 I|||arrow_forward#include<stdio.h> #include<stdarg.h> void fun1(int num, ...); void fun2(int num, ...); int main() { fun1(1, "Apple", "Boys", "Cats", "Dogs"); fun2(2, 12, 13, 14); return 0; } void fun1(int num, ...) { char *str; va_list ptr; va_start(ptr, num); str = va_arg(ptr, char *); printf("%s ", str); } void fun2(int num, ...) { va_list ptr; va_start(ptr, num); num = va_arg(ptr, int); printf("%d", num); }.arrow_forward#include using namespace std; int main() { } int kidsInClass1; int kidsInClass2; int numClasses; double kidsAvgMethodl; double kidsAvgMethod2; kidsInClass1= 3; kidsInClass2 = 2; numClasses = 2; Type the program's output kidsAvgMethodl = static_cast (kidsInClass1 + kidsInClass2) /static_cast (numClasses); kidsAvgMethod2 (kidsInClass1 + kidsInClass2) / numClasses; cout << kidsAvgMethod1 << endl; cout << kidsAvgMethod2 << endl; return 0; =arrow_forward#include using namespace std; int main() { int numbers[10]; int i; for (i=0;i>numbers[i]; int numbers2[10],j,k; for(i=0;ic) { max1=rep; c=top; } } cout<arrow_forward5. pointers, structs and arrays Given the definition struct Animal { char * species; int age; }; and the following animals: 5 year old gorilla 11 year old giraffe 4 year old cobra 2 year old gnu 8 year old lion Give a description in word AND draw a picture for each of the following declarations. Be sure to include the complete data for the animals described above. a) struct Animal zoo[5]; b) struct Animal * zoo2[5]; c) struct Animal (* zoo3)[];arrow_forwardstruct ID { int x; int y; }; struct name { ID r; }; int main() { name a[2]; for (int i=0;i<2;i++) { a[i).r.x=i; a[i].r.y=i+1; } for(int i=0;i<2;i++) cout<arrow_forwardint i,j; for(i=1;ii;--j) cout<<"-"; } **_* **_** ***arrow_forward#include using namespace std; void some_action_1(int); int main() { cout<arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_iosRecommended textbooks for you
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