#BZOJ3745. Norma
Norma
No submission language available for this problem.
题目描述
输入格式
第1行,一个整数N;
第2~n+1行,每行一个整数表示序列a。
输出格式
输出答案对10^9取模后的结果。
4
2
4
1
4
109
【数据范围】
N <= 500000
1 <= a_i <= 10^8
No submission language available for this problem.
4
2
4
1
4
109
【数据范围】
N <= 500000
1 <= a_i <= 10^8
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