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#include<stdio.h>int main(){ long long m,n,t; while(~scanf("%lld%lld",&m,&n)) { t=m*(m+1)/2*n*(n+1)/2; printf("%lld\n",t); }}
NYOJ 206 矩形的个数
原文地址:http://www.cnblogs.com/mycapple-zgs-111411/p/4619635.html