题解 | #牛牛的等差数列#
牛牛的等差数列
https://www.nowcoder.com/practice/fb9daba67b88437a9e501adf020d425e
#include <stdio.h>
int main() {
int a, b,c;
while (scanf("%d %d", &a, &b) != EOF) {
c=b+(b-a);
printf("%d\n", c);
}
return 0;
}
