思路: 有点类似于区间修改点查询的树状数组. 实现: #include <iostream> #include <cstdio> using namespace std; ; int a[MAXN], n, k, q; int main() { cin >> n >> k >> q; ; i < n; i++) { int l, r; scanf("%d %d", &l, &r); a[l]++; a[r…

B. Karen and Coffee time limit per test 2.5 seconds memory limit per test 512 megabytes input standard input output standard output To stay woke and attentive during classes, Karen needs some coffee! Karen, a coffee aficionado, wants to know the opti…

CodeForces 816B Karen and Coffee(前缀和,大量查询) Description Karen, a coffee aficionado, wants to know the optimal temperature for brewing the perfect cup of coffee. Indeed, she has spent some time reading several recipe books, including the universally ac…

To stay woke and attentive during classes, Karen needs some coffee! Karen, a coffee aficionado, wants to know the optimal temperature for brewing the perfect cup of coffee. Indeed, she has spent some time reading several recipe books, including the u…

To stay woke and attentive during classes, Karen needs some coffee! Karen, a coffee aficionado, wants to know the optimal temperature for brewing the perfect cup of coffee. Indeed, she has spent some time reading several recipe books, including the u…

To stay woke and attentive during classes, Karen needs some coffee! Karen, a coffee aficionado, wants to know the optimal temperature for brewing the perfect cup of coffee. Indeed, she has spent some time reading several recipe books, including the u…

B. Karen and Coffee time limit per test 2.5 seconds memory limit per test 512 megabytes input standard input output standard output To stay woke and attentive during classes, Karen needs some coffee! Karen, a coffee aficionado, wants to know the opti…

http://codeforces.com/contest/816/problem/B To stay woke and attentive during classes, Karen needs some coffee! Karen, a coffee aficionado, wants to know the optimal temperature for brewing the perfect cup of coffee. Indeed, she has spent some time r…

Description To stay woke and attentive(专注的) during classes, Karen needs some coffee! Karen, a coffee aficionado, wants to know the optimal temperature for brewing the perfect cup of coffee. Indeed, she has spent some time reading several recipe books…

To stay woke and attentive during classes, Karen needs some coffee! Karen, a coffee aficionado, wants to know the optimal temperature for brewing the perfect cup of coffee. Indeed, she has spent some time reading several recipe books, including the u…