b971. 等差數列 -- 板橋高中教學題 | From: [111.242.82.249] | 發表日期 : 2024-02-09 16:27

#include<stdio.h>

#include<stdlib.h>

 

int main() {

int firstTerm, lastTerm, tolerance;  // firstTerm：首項、lastTerm：末項、tolerance：公差

scanf("%d %d %d", &firstTerm, &lastTerm, &tolerance);

if (firstTerm < lastTerm) { // 由小到大的公差數列【思考】：公差一定為正，這樣才會越加越大

    for (firstTerm; firstTerm <= lastTerm; firstTerm += tolerance) {

           printf("%d ", firstTerm);

    }

}

else if (firstTerm == lastTerm) {

         printf("%d", lastTerm);

}

else { // 由大到小的公差數列【思考】：公差一定為負，這樣才會越加越小〔加上一個負值等於公差是負值〕

    for (firstTerm; firstTerm >= lastTerm; firstTerm += tolerance) {

          printf("%d ", firstTerm);

    }

}

printf("\n");

system("pause"); // 注意此行驗證時需註解掉

return 0;

}