#include int main() { ??int numStudents, i; ??float score, total = 0; ??int excellent = 0, good = 0, average = 0, pass = 0, fail = 0; ??printf("歡迎使用成績(jī)轉(zhuǎn)換程序！\n"); ??printf("請(qǐng)輸入要轉(zhuǎn)換的人數(shù)："); ??scanf("%d", &numStudents); ??for (i = 1; i <= numStudents; i++) { ????printf("請(qǐng)輸入第%d個(gè)學(xué)生的成績(jī)：", i); ????scanf("%f", &score); ????total += score; ????if (score >= 90) { ??????excellent++; ????} else if (score >= 80) { ??????good++; ????} else if (score >= 70) { ??????average++; ????} else if (score >= 60) { ??????pass++; ????} else { ??????fail++; ????} ??} ??printf("\n轉(zhuǎn)換結(jié)果如下：\n"); ??printf("優(yōu)：%d人，占比%.2f%%\n", excellent, (float)excellent / numStudents * 100); ??printf("良：%d人，占比%.2f%%\n", good, (float)good / numStudents * 100); ??printf("中：%d人，占比%.2f%%\n", average, (float)average / numStudents * 100); ??printf("及格：%d人，占比%.2f%%\n", pass, (float)pass / numStudents * 100); ??printf("不及格：%d人，占比%.2f%%\n", fail, (float)fail / numStudents * 100); ??return 0; }