题解 | 小红的优惠券
小红的优惠券
https://www.nowcoder.com/practice/e991a011f96444f3a6ad57943d39f4ad
#include <iostream>
using namespace std;
int main() {
int n, m;
int a, b;
while (cin >> n >> m) {
int min_amount = n;
for (int i = 0; i < m; ++i) {
cin >> a >> b;
if (a <= n)
min_amount = min(min_amount, n - b);
}
cout << min_amount;
}
}
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