Problem-Solving Strategies

Problem-Solving Strategies

这本书里的习题真是太多了，还配有solution

The Invariance Principle;

Coloring Proofs;
The extremal Principle;
The Box Principle;

Enumerative Combinatorics;
Number Theory;
Inequalities;
The Induction Principle;
Sequences;
Polynomials;
Functional Equations;
Geometry;
Games;
Further Strategies

1.不变量原理2.染色的证明3.极端原理4.抽屉原理5.组合计数6.数论7.不等式8.归纳法原理9.数列10.多项式11.函数方程12.几何13.博弈14.其他策略