维护deque双向队列解法: https://www.luogu.com.cn/problem/P1714 千万不能用q.front()来赋值给一个临时变量tmp,否则就一直报re,吐了!
#include
#define int long long
using namespace std;
const int inf=0x3f3f3f3f;
const int maxn=1e7+5;
int n,m,sum[maxn],ans=-inf;
dequeq;
signed main()
{
scanf("%lld%lld",&n,&m);
for(int i=1;i
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