We found difficulty in solving this complicated problem.

我们感到，解决这个复杂的问题是困难的。

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Ant Colony algorithm is a novel simulated evolvement algorithm solving complicated combinatorial optimization problem and its typical feature is swarm intelligence.

蚁群算法是一种新颖的求解复杂组合优化问题的模拟进化算法，它具有典型的群体智能的特性。

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A computer will always follow the same sequence when solving a problem, no matter how complicated that problem may be.

不管问题多么复杂，计算机在解决它时总是遵循同样的次序。

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People generate or "mine" Bitcoins by participating in that network - for instance, by solving a complicated mathematical problem using their computer.

BBC: Canadian man to sell house for Bitcoin virtual currency