摘要:
Problem Statement Given is a string SS consisting of digits from 1 through 9. Find the number of pairs of integers (i,j)(i,j) (1≤i≤j≤|S|1≤i≤j≤|S|) tha 阅读全文
摘要:
Time Limit: 2 sec / Memory Limit: 1024 MB Score : 300300 points Problem Statement Given are positive integers NN, MM, QQ, and QQ quadruples of integer 阅读全文