题目内容
假设稀疏矩阵A和B都采用三元组表示，设计一个算法计算C=A*B,即实现稀疏矩阵相乘。要求C也采用三元组表示。算法函数接口为：
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1. The writer wanted to find a part-time job because ________.A. he was in need of a computerB. he didn’t have enough moneyC. his parents didn’t have much moneyD. he wanted to gain work experience2. When the writer entered the restaurant, ________.A. he was disappointedB. he was tired and dirtyC. he was refused againD. there were five other students3. The boss required ________.A. a clean boyB. a hard-working boyC. a clean and hard-working boyD. a clever boy4. The boss expected the writer to work ________ every day.A. 2 hoursB. 3 hoursC. 4 hoursD. 5 hours5. By the end of the story, ________.A. the writer was employed by the bossB. the boss agreed to give the writer a tryC. the writer was refused by the bossD. the boss asked the writer to wait for his call
A. Fill in each blank with “need”, “get”, “free” or “look” in the word’s proper form.1. The hungry children were in____ of food.2. George was so busy that he had only one__________ afternoon a week.3. My friend______________after my cat while I was on holiday.4. When we ___________ to the station, the bus was waiting there.5. My car____________repairing.6. You are _____ to do as you wish.7. After a busy day hunting for a job, he _________ very tired.8. I must________ some fruit in the market.
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