【专题】树状数组

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学习资料

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http://community.topcoder.com/tc?module=Static&d1=tutorials&d2=binaryIndexedTrees

http://hi.baidu.com/wyl8899/item/c3ac1c0eec3516ea34990267 

http://hi.baidu.com/solofancy/item/a6b7da6abdea54126995e65f

http://blog.csdn.net/pkqs90/article/details/10859155

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树状数组相对于线段树的优点

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代码短

常数低

易向高维推广

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