题解 | 牛牛的等差数列
牛牛的等差数列
https://www.nowcoder.com/practice/fb9daba67b88437a9e501adf020d425e
#include <iostream>
using namespace std;
int main() {
int a, b;
scanf("%d%d", &a, &b);
printf("%d", b + b - a);
}
牛牛的等差数列
https://www.nowcoder.com/practice/fb9daba67b88437a9e501adf020d425e
#include <iostream>
using namespace std;
int main() {
int a, b;
scanf("%d%d", &a, &b);
printf("%d", b + b - a);
}
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