实验六
任务一
#include<stdio.h> #include<stdlib.h> #include<string.h> #define N 3 typedef struct student { int id; int name[20]; char subject[20]; float perf; float mid; float final; float total; char level[10]; }STU; void input(STU[], int); void calc(STU[], int); int fail(STU[], STU[], int); void sort(STU[], int); void print(STU[], int); int main() { STU st[N], fst[N]; int k; printf("录入学生成绩信息:\n"); input(st, N); printf("\n成绩处理...\n"); calc(st, N); k = fail(st, fst, N); sort(st, N); printf("\n学生成绩排名情况:\n"); print(st, N); printf("\n不及格学生信息:\n"); print(fst, k); return 0; } void input(STU s[], int n) { int i; for (i = 0; i < n; i++) scanf("%d %s %s %f %f %f",&s[i].id,s[i].name,s[i].subject,&s[i].perf,&s[i].mid,&s[i].final); } void calc(STU s[], int n) { int i; for (i = 0; i < n; i++) { s[i].total = s[i].perf * 0.2 + s[i].mid * 0.2 + s[i].final * 0.6; if (s[i].total >= 90) strcpy(s[i].level, "优"); else if (s[i].total >= 80 && s[i].total < 90) strcpy(s[i].level, "良"); else if (s[i].total >= 70 && s[i].total < 80) strcpy(s[i].level, "中"); else if (s[i].total >= 60 && s[i].total < 70) strcpy(s[i].level, "及格"); else strcpy(s[i].level, "不及格"); } } int fail(STU s[], STU t[], int n) { int i, k = 0; for (i = 0; i < n; i++) if (s[i].total < 60) t[k++] = s[i]; return k; } void sort(STU s[], int n) { int i, j; STU temp; for (i = 0; i < n - 1; i++) for (j = 0; j < n - 1 - i; j++) if (s[j].total < s[j + 1].total) { temp = s[j]; s[j] = s[j + 1]; s[j + 1] = temp; } } void print(STU s[], int n) { int i; printf("-----------------\n"); printf("学号 姓名 考试科目 平时成绩 期中成绩 期末成绩 总评成绩 成绩等级\n"); for (i = 0; i < n; i++) printf("%5d %10s%20s %5.1f %5.1f %5.1f %5.1f% 10s\n",s[i].id,s[i].name,s[i].subject,s[i].perf,s[i].mid,s[i].final,s[i].total, s[i].level); }
1.要注意字符的区别
2对于这种复杂的程序一定要认真,防止少打一些字母或符号
任务二
#include <stdio.h> const int N = 3; typedef struct student { long no; char name[20]; int score; }STU; void input(STU s[], int n); int findMinlist(STU s[], STU t[], int n); void output(STU s[], int n); int main() { STU stu[N], minlist[N]; int count; printf("录入%d个学生信息\n", N); input(stu, N); printf("\n统计最低分人数和学生信息...\n"); count = findMinlist(stu, minlist, N); printf("\n一共有%d个最低分,信息如下:\n", count); output(minlist, count); return 0; } void input(STU s[], int n) { int i; for (i = 0; i < n; i++) scanf("%ld %s %d", &s[i].no, s[i].name, &s[i].score); } void output(STU s[], int n) { int i; for (i = 0; i < n; i++) printf("%ld %s %d\n", s[i].no, s[i].name, s[i].score); } int findMinlist(STU s[], STU t[], int n) { int i, k = 0; STU temp; temp = s[0]; for (i = 1; i < n; i++) { if (s[i].score < temp.score) temp = s[i]; } for (i = 0; i < n; i++) { if (s[i].score == temp.score) { t[k] = s[i]; k++; } } return k; }
任务三
#include <stdio.h> #include <string.h> const int N = 10; typedef struct student { long int id; char name[20]; float objective; float subjective; float sum; char level[10]; }STU; void input(STU s[], int n); void output(STU s[], int n); void process(STU s[], int n); int main() { STU stu[N]; printf("录入%d个考生信息: 准考证号,姓名,客观题得分(<=40),操作题得分(<=60)\n", N); input(stu, N); printf("\n对考生信息进行处理: 计算总分,确定等级\n"); process(stu, N); printf("\n打印考生完整信息: 准考证号,姓名,客观题得分,操作题得分,总分,等级\n"); output(stu, N); return 0; } void input(STU s[], int n) { int i = 0; for (; i < n; i++) { scanf("%ld %s %f %f", &s[i].id, &s[i].name, &s[i].objective, &s[i].subjective); } } void output(STU s[], int n) { int i; int a[N]; printf("-------------------------------"); printf("\n"); printf("准考证号\t姓名\t客观题得分\t操作题得分\t总分\t等级\t"); printf("\n"); for (i = 0; i < n; i++) { printf("%ld\t%s\t%f\t%f\t%f\t%s", s[i].id, s[i].name, s[i].objective, s[i].subjective, s[i].sum, s[i].level); printf("\n"); } } void process(STU s[], int n) { int i, j; STU temp; for (i = 0; i < n; i++) { s[i].sum = s[i].objective * 0.4 + s[i].subjective * 0.6; } for (i = 0; i < n - 1; i++) for (j = 0; j < n - 1 - i; j++) { if (s[j].sum < s[j + 1].sum) { temp = s[j]; s[j] = s[j + 1]; s[j + 1] = temp; } } for (i = 0; i < n; i++) { if (1.0 * (i + 1) / n <= 0.1) { strcpy(s[i].level, "优秀"); } else if (1.0 * (i + 1) / n <= 0.5) { strcpy(s[i].level, "合格"); } else { strcpy(s[i].level, "不合格"); } } }