Submission #255291

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
255291	2020-07-31 17:09:01	model_code	Progression (NOI20_progression)	C++17	100 / 100	1459 ms	81684 KiB

Progression

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#include <iostream>
#include <algorithm>
using namespace std;
int N, Q;
long long D[300010], B[300010];
struct treedata {
    int len; long long val;
    treedata() {}
    treedata(int _len, long long _val): len(_len), val(_val) {}
    static bool cmp(treedata lhs, treedata rhs) {
        return lhs.len < rhs.len;
    }
};
struct qval {
    int len; long long sum;
    treedata prefix, suffix, subarray;
    qval() {}
    qval(long long val) {
        len = 1; sum = val;
        subarray = treedata(0, 0);
        prefix = suffix = treedata(1, val);
    }
    void add(long long val) {
        prefix.val += val;
        suffix.val += val;
        subarray.val += val;
        sum += val * len;
 
 
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