随机跳题到了一道红题,记录一下。12345678910111213141516171819#include <cstdio>int n, a, b, ans, cnt;int main(){ scanf("%d", &n); cnt = n; while (n--) { scanf("%d %d", &a, &b); if ((5 * a - 3 * b) > 40) { ans++; } } printf("%d", ans); if (ans == cnt) printf("+"); return 0;}2022/6/25