2019-05-21
10:15:00
加油,加油 !!!
1 #include <bits/stdc++.h> 2 using namespace std; 3 int main() 4 { 5 int n, a, b; 6 while(~scanf("%d %d %d", &n, &a, &b)) 7 { 8 a = n - a; 9 if(a >= b + 1) 10 { 11 cout << b + 1; 12 } 13 else 14 { 15 cout << a; 16 } 17 cout << endl; 18 } 19 return 0; 20 }