One day I was shopping in the supermarket. There was a cashier counting coins seriously when a little kid running and singing "门前大桥下游过一群鸭,快来快来 数一数,二四六七八". And then the cashier put the counted coins back morosely and count again... Hello Kiki is…
中国剩余定理就是同余方程组除数为质数的特殊情况 我直接用同余方程组解了. 记得exgcd后x要更新 还有先更新b1再更新m1,顺序不能错!!(不然会影响到b1的更新) #include<cstdio> #include<cctype> #define REP(i, a, b) for(int i = (a); i < (b); i++) #define _for(i, a, b) for(int i = (a); i <= (b); i++) using namespa…
Lucky7 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Problem Description When ?? was born, seven crows flew in and stopped beside him. In its childhood, ?? had been unfortunately fall into the sea. While it was d…