From 7cf49abbab6e8c4a8a01530f785354032507d17f Mon Sep 17 00:00:00 2001 From: pmfsq5yrv <1159971203@qq.com> Date: Sat, 16 Nov 2024 08:56:59 +0800 Subject: [PATCH] ADD file --- Array_program.c | 267 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 267 insertions(+) create mode 100644 Array_program.c diff --git a/Array_program.c b/Array_program.c new file mode 100644 index 0000000..75b3ea3 --- /dev/null +++ b/Array_program.c @@ -0,0 +1,267 @@ +#include +#include +#include + +// 定义学生结构体 +typedef struct Student { + char id[20]; + char clas[20]; + char name[20]; + double score1, score2, score3, totalScore; +} Student; + +#define MAX_STUDENTS 100 +Student students[MAX_STUDENTS]; +int count = 0; + +void menu(); +void input(); +void delete(); +void select(); +void sort(); +void output(); + +int main() { + char option; + + while (1) { + menu(); + printf("please input your option: "); + scanf(" %c", &option); + + switch (option) { + case '1': + input(); + break; + case '2': + delete(); + break; + case '3': + select(); + break; + case '4': + sort(); + break; + case '5': + output(); + break; + case '6': + printf("Exiting.\n"); + return 0; + default: + printf("Invalid option.\n"); + } + } + return 0; +} + +void menu() { + printf("\n"); + printf("1.input\n"); + printf("2.delete\n"); + printf("3.select\n"); + printf("4.order\n"); + printf("5.output\n"); + printf("6.quit\n"); +} + +void input() { + while (1) { + if (count >= MAX_STUDENTS) { + printf("Maximum number of students reached.\n"); + return; + } + Student buffer; + printf("Id: "); + scanf("%s", buffer.id); + printf("Class: "); + scanf("%s", buffer.clas); + printf("Name: "); + scanf("%s", buffer.name); + printf("Score1: "); + scanf("%lf", &buffer.score1); + printf("Score2: "); + scanf("%lf", &buffer.score2); + printf("Score3: "); + scanf("%lf", &buffer.score3); + + buffer.totalScore = buffer.score1 + buffer.score2 + buffer.score3; + students[count++] = buffer; + + char cont[4]; + printf("continue? (yes/no): "); + scanf("%s", cont); + if (cont[0] == 'n') break; + } +} + +void delete() { + if (count == 0) { + printf("No students.\n"); + return; + } + + char key[20]; + printf("Enter student ID or name to delete: "); + scanf("%s", key); + + int i, boo1 = 0; + for (i = 0; i < count; i++) { + if (strcmp(students[i].id, key) == 0 || strcmp(students[i].name, key) == 0) { + boo1 = 1; + break; + } + } + int j; + if (boo1) { + for (j = i; j < count - 1; j++) { + students[j] = students[j + 1]; + } + count--; + printf("Student deleted successfully.\n"); + output(); + } else { + printf("Student not found.\n"); + output(); + } +} + +// void select() { +// char key[20]; +// printf("Enter student ID, name, or class to search: "); +// scanf("%s", key); + +// int boo1 = 0; +// int i; +// for (i = 0; i < count; i++) { +// if (strcmp(students[i].id, key) == 0 || strcmp(students[i].name, key) == 0 || strcmp(students[i].clas, key) == 0) { +// printf("%s %s %s %.1f %.1f %.1f %.1f\n", students[i].id, students[i].clas, students[i].name, +// students[i].score1, students[i].score2, students[i].score3, students[i].totalScore); +// boo1 = 1; +// } +// } + +// if (!boo1) { +// printf("No eligible student found.\n"); +// } +// } + +void select() { + char input[50]; + printf("Enter your query (e.g., 1 classNum-classNum, 2 idNum-idNum, 3 namePrefix*, 4 minScore, 5 classNum.idNum-idNum): "); + scanf(" %[^\n]", input); + + int type = input[0] - '0'; + char condition[50]; + strcpy(condition, input + 2); + + int boo1 = 0; + + switch (type) { + case 1: { + int startClass, endClass; + sscanf(condition, "%d-%d", &startClass, &endClass); + int i; + for (i = 0; i < count; i++) { + int class = atoi(students[i].clas); + if (class >= startClass && class <= endClass) { + printf("%s %s %s %.1f %.1f %.1f %.1f\n", students[i].id, students[i].clas, students[i].name, + students[i].score1, students[i].score2, students[i].score3, students[i].totalScore); + boo1 = 1; + } + } + break; + } + case 2: { + int startId, endId; + sscanf(condition, "%d-%d", &startId, &endId); + int i; + for (i = 0; i < count; i++) { + int id = atoi(students[i].id); + if (id >= startId && id <= endId) { + printf("%s %s %s %.1f %.1f %.1f %.1f\n", students[i].id, students[i].clas, students[i].name, + students[i].score1, students[i].score2, students[i].score3, students[i].totalScore); + boo1 = 1; + } + } + break; + } + case 3: { + char prefix[20]; + sscanf(condition, "%s", prefix); + int prefixLen = strlen(prefix) - 1; + int i; + for (i = 0; i < count; i++) { + if (strncmp(students[i].name, prefix, prefixLen) == 0) { + printf("%s %s %s %.1f %.1f %.1f %.1f\n", students[i].id, students[i].clas, students[i].name, + students[i].score1, students[i].score2, students[i].score3, students[i].totalScore); + boo1 = 1; + } + } + break; + } + case 4: { + double minScore; + sscanf(condition, "%lf", &minScore); + int i; + for (i = 0; i < count; i++) { + if (students[i].totalScore >= minScore) { + printf("%s %s %s %.1f %.1f %.1f %.1f\n", students[i].id, students[i].clas, students[i].name, + students[i].score1, students[i].score2, students[i].score3, students[i].totalScore); + boo1 = 1; + } + } + break; + } + case 5: { + int class, startId, endId; + sscanf(condition, "%d.%d-%d", &class, &startId, &endId); + int i; + for (i = 0; i < count; i++) { + int studentClass = atoi(students[i].clas); + int studentId = atoi(students[i].id); + + if (studentClass == class && studentId >= startId && studentId <= endId) { + printf("%s %s %s %.1f %.1f %.1f %.1f\n", students[i].id, students[i].clas, students[i].name, + students[i].score1, students[i].score2, students[i].score3, students[i].totalScore); + boo1 = 1; + } + } + break; + } + default: + printf("Invalid query type.\n"); + return; + } + if (!boo1) { + printf("No eligible student found.\n"); + } +} + +void sort() { + int i, j; + for (i = 0; i < count - 1; i++) { + for (j = i + 1; j < count; j++) { + if (strcmp(students[i].clas, students[j].clas) > 0 || + (strcmp(students[i].clas, students[j].clas) == 0 && students[i].totalScore < students[j].totalScore)) { + Student temp = students[i]; + students[i] = students[j]; + students[j] = temp; + } + } + } + printf("Students sorted successfully.\n"); + output(); +} + +void output() { + if (count == 0) { + printf("No students to display.\n"); + return; + } + int i; + for (i = 0; i < count; i++) { + printf("%s %s %s %.1f %.1f %.1f %.1f\n", students[i].id, students[i].clas, students[i].name, + students[i].score1, students[i].score2, students[i].score3, students[i].totalScore); + } +}