#100952D

Gym 100952D&&2015 HIAST Collegiate Programming Contest D. Time to go back【杨辉三角预处理,组合数,dp】

timelimitpertest:1secondmemorylimitpertest:256megabytesinput:standardinputoutput:standardoutputYouhavebeenoutofSyriaforalongtime,andyourecentlydecidedtocomeback...