练11.3 等差数列末项计算

0
Unknown User @ 2026-2-2 12:25:22

#include <bits/stdc++.h>

using namespace std; int main() { int a, b, c; cin >> a >> b >> c; cout << a + (c - 1)*(b - a); return 0; }
-1
Unknown User @ 2026-1-9 13:42:50

#include <bits/stdc++.h> using namespace std;

int main() { int a, b, c; cin >> a >> b >> c; printf("%d", a + (b - a) * (c - 1)); return 0; }