From c460e95304a58421c84fe5ad6cd5748af19af78e Mon Sep 17 00:00:00 2001 From: Amneesh Singh Date: Tue, 27 Dec 2022 19:40:13 +0530 Subject: [PATCH] exp 3,5,6,7: init Signed-off-by: Amneesh Singh --- 2.c | 7 +++--- 3.c | 76 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 3.png | Bin 0 -> 8983 bytes 5.c | 72 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 5.png | Bin 0 -> 8572 bytes 6.c | 48 +++++++++++++++++++++++++++++++++++++ 6.png | Bin 0 -> 9570 bytes 7.c | 66 ++++++++++++++++++++++++++++++++++++++++++++++++++ 7.png | Bin 0 -> 6771 bytes 9 files changed, 266 insertions(+), 3 deletions(-) create mode 100644 3.c create mode 100644 3.png create mode 100644 5.c create mode 100644 5.png create mode 100644 6.c create mode 100644 6.png create mode 100644 7.c create mode 100644 7.png diff --git a/2.c b/2.c index 67c49c2..1f35bb2 100644 --- a/2.c +++ b/2.c @@ -82,9 +82,10 @@ int main() { delete (&head, 2); reverse(&head); - while (head != NULL) { - printf("%d ", head->sid); - head = head->next; + student *cur = head; + while (cur != NULL) { + printf("%d ", cur->sid); + cur = cur->next; } // free diff --git a/3.c b/3.c new file mode 100644 index 0000000..e12f5aa --- /dev/null +++ b/3.c @@ -0,0 +1,76 @@ +#include +#include + +typedef struct Employee employee; +struct Employee { + int eid; + struct Employee *next; + struct Employee *prev; +}; + +typedef struct Employees employees; +struct Employees { + uint len; + struct Employee *head; + struct Employee *tail; +}; + +employees *init() { + employees *list = malloc(sizeof(employees)); + list->len = 0; + list->head = NULL; + list->tail = NULL; + + return list; +} + +void insert(employees *list, uint eid) { + employee *new = malloc(sizeof(employee)); + new->eid = eid; + new->prev = NULL; + new->next = list->head; + + if (list->head) + list->head->prev = new; + else + list->tail = new; + + list->head = new; + list->len++; +} + +void delete (employees *list) { + employee *prev = list->tail->prev; + + free(list->tail); + + if (prev) { + prev->next = NULL; + if (prev->prev == NULL) + list->head = prev; + } + + list->tail = prev; + list->len--; +} + +int main() { + employees *list = init(); + insert(list, 4); + insert(list, 20); + insert(list, 300); + insert(list, 44); + delete (list); + + employee *cur = list->head; + while (cur != NULL) { + printf("%d ", cur->eid); + cur = cur->next; + } + + // free + while (list->tail != NULL) + delete (list); + + free(list); +} diff --git a/3.png b/3.png new file mode 100644 index 0000000000000000000000000000000000000000..29e18cd734b133b006b9b8f18c32ae8b45096fab GIT binary patch literal 8983 zcmeAS@N?(olHy`uVBq!ia0y~yV4TIkz!1T~#K6GdY`n~#fq{Xuz$3Dlfr0M`2s2LA z=96Y%P+;(MaSW-L^LB1!fz0)}_v>rR&)1%RAaTds;e(w^;3AE{?K*2ye)jCyy3PD` z%JxmWL;a4rt8U%+cE_0L6!ta`Y4DYVL|GxIO`2qg-brL1{%(Ve3Ki`~Ve>C&Tzs>5UX^sj4 z9oB4_7R-)iEYdP*-1=OL7tX9u+bgw6fP>|b2Fs7EFLqsz=N@EhTNE+NY-7&U)0ZVy zbS|5G)2S|0RY`!OMb6-FuP={5_eqrwr^e@u3p4{ZFI{Uq&-1-~b&{zlNQGX(-+rwH 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+typedef struct Stacks stacks; +struct Stacks { + int *stack; + uint s1, s2; + uint l1, l2; +}; + +stacks *init(uint s1, uint s2) { + stacks *s = malloc(sizeof(stacks)); + s->stack = malloc(sizeof(int) * (s1 + s2)); + s->s1 = s1, s->s2 = s2; + s->l1 = s->l2 = 0; + + return s; +} + +void push(uint stack, stacks *s, int elem) { + if (stack != 1 && stack != 2) + fprintf(stderr, "Invalid stack number\n"); + + if (stack == 1) { + if (s->l1 == s->s1) { + fprintf(stderr, "Stack 1 Overflow"); + return; + } + s->stack[s->l1++] = elem; + return; + } + + if (s->l2 == s->s2) { + fprintf(stderr, "Stack 2 Overflow"); + return; + } + s->stack[s->s1 + s->l2++] = elem; +} + +int pop(uint stack, stacks *s) { + if (stack != 1 && stack != 2) + fprintf(stderr, "Invalid stack number\n"); + + if (stack == 1) { + if (!s->l1) { + fprintf(stderr, "Stack 1 Underflow"); + exit(1); + } + return s->stack[--s->l1]; + } + + if (!s->l2) { + fprintf(stderr, "Stack 2 Underflow"); + exit(1); + } + return s->stack[s->s1 + --s->l2]; +} + +int main() { + int s1 = 8, s2 = 4; // sizes + stacks *s = init(s1, s2); + push(1, s, 3); + push(1, s, 99); + push(2, s, 6); + push(1, s, 4); + + printf("%d ", pop(1, s)); + printf("%d", pop(2, s)); + + free(s->stack); + free(s); +} diff --git a/5.png b/5.png new file mode 100644 index 0000000000000000000000000000000000000000..c77221e1ce1877602e9da03808f0e36fe260bf63 GIT binary patch literal 8572 zcmeAS@N?(olHy`uVBq!ia0y~yV60|fUssNy@Ib*l)0~{V>_jGFGLl(bFtCaE`;yN~6u$E(Ih?u3vv50HC>7VtBeit@9J6iIitmh7o z-^H`@|1O*nHKXQX_Vx2gJ3jC8XKZ__9K3P0`?Z{!xhDGUMpjw!|9@RdO!~98;Qr@w z*Q>AQUGWtR{iVD9p!DgD+hhyg{>({v@YLgf;@_15($12C%eQZCU%0~j{QPN8O#hVz zxV5iL^w%?)#?7<-tW#mZq@52VLJx_@rO5JX-rs3@J0}0ERM!mup1CXx$D&d{s zd$%g;rDyGnz@^8FcHWC%bi34$n5ufyz$R_+<&+Puk5<+^%*)j7U&$b)9IYE(qqpqS?Dy?Rncxb|L-puYz$3?0cz?D z9yfPP=@njcGT`pfozX(d@AV`#7e%J;JGwLSs?eIn^HzRfauZS7Cwk2D+@bJok4?0X zFyB02(BS7kZO7tCtGc3>oz1&;w`cO2Io@f^&P8@h&$I8c@w~8SVVQN?!^r;&=Dkw) 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(*stack)->next; + free(*stack); + *stack = next; + return id; +} + +void traverse(node *stack) { + while (stack != NULL) { + printf("%d ", stack->id); + stack = stack->next; + } + printf("\n"); +} + +int main() { + node *stack = NULL; + push(&stack, 4); + push(&stack, 99); + push(&stack, 23); + printf("Pop: %d\n", pop(&stack)); + printf("Traverseal: "); + traverse(stack); + + // free + while (stack != NULL) + pop(&stack); +} diff --git a/6.png b/6.png new file mode 100644 index 0000000000000000000000000000000000000000..73886274416c70972565446bf537bae6b582a71f GIT binary patch literal 9570 zcmeAS@N?(olHy`uVBq!ia0y~yU<_qoV94NLVqjo6_xH;_1_lPs0*}aI1_r((Aj~*b zn@^g7L4m>3#WAE}&fB@=1+mXdADn-?UVKm6Cpozf7q}TaSl=x2m^ex2B-~TBtnF@~M*!thdO{u}#UTw0S&VWapV#uJ_I7zVGb6G3oWftG1qcoIL6Ulcu>m zR6dcN?6mIfwoQHM98pJAnO?8v^}F~r{#Ui$yZOJ4mgmnsT5x*XdB(QXCgX?F?bmhw z*u9*?z0@$={qI#+z$Q| z+c7Dk`+u<1=51xwx6J2#>shngiJ@WgncU-(BzF92I}{^5f8Un0nct(+B`2PCIewmj 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L>gTe~DWM4f2~M`> literal 0 HcmV?d00001 diff --git a/7.c b/7.c new file mode 100644 index 0000000..471c022 --- /dev/null +++ b/7.c @@ -0,0 +1,66 @@ +#include +#include + +typedef struct Node node; +struct Node { + int id; + struct Node *next; +}; + +typedef struct Queue queue; +struct Queue { + node *head; + node *tail; +}; + +int peek(queue *q) { return q->head->id; } + +void insert(queue *q, int id) { + node *new = malloc(sizeof(node)); + new->id = id; + new->next = NULL; + + if (q->tail) + q->tail->next = new; + else + q->head = new; + + q->tail = new; +} + +void delete (queue *q) { + if (!q->head) + return; + + node *next = q->head->next; + + free(q->head); + + q->head = next; + + if (!q->head) + q->tail = NULL; +} + +void display(queue *q) { + node *cur = q->head; + while (cur != NULL) { + printf("%d ", cur->id); + cur = cur->next; + } + printf("\n"); +} + +int main() { + queue *q = malloc(sizeof(queue)); + insert(q, 56); + insert(q, 3); + insert(q, 99); + delete(q); + display(q); 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