Free cases, relax (1)

Bored, it's really boring. programmers, when bored, develop their brains and use their brains to improve programming.

Case 1:

Night, few stars, people in H town are sleeping.

Suddenly, the east of the town was filled with smoke, and the smoke was getting bigger and bigger. After a while, there was a new fire, and the fire was still visible in the west of the town. Bad! Fire!

The town made a noise in the morning and people flocked to the street. The Lotus Tower is in fire!

The fire truck was dispatched. The fire occurred on the second floor of the building. A burned man was found in the burning scene.

Fire is burned from the accounting room on the second floor, which is shared by two people. One is acha and the other is terlong. The Office is 70 m² big and there is only one door leading to the corridor.

This evening, both accountants stayed to work overtime. At about nine o'clock, talong first went home, leaving only acha.

A fire alarm is triggered at half past eleven in the middle of the night. The night shift guard immediately carried a fire extinguisher to the second floor to extinguish the fire. However, the house was locked from the inside, and the guard couldn't push it. He wanted to open it with something, but he couldn't find anything available.

Ten minutes later, the fire truck arrived. When the fireman connected the fire pipe, the fire had burned very high. The firefighters spent a lot of effort to put out the fire. They found the accountant acha's body at the scene of the fire.

Accountant A Cha has always been cautious. When a person stays late at night to work overtime, he should lock the door with a lock and lock the windows. Therefore, it is a secret room. But he made the fan rotate above the window. Maybe acha has the habit of smoking. Let it rotate to breathe.

However, the fan is close to the accountant's desk and a little farther away from acha's desk.

The results of the survey did not identify the cause of the fire, or even the fire location could not be confirmed. There is no gas stove or gas heating equipment in this office, nor is there any timed ignition device. In addition, there is no trace of wire fire.

To say that there is a fire source, it is limited to the smoke from acha. If acha forgot to burn the cigarette butts and burned the files, the burning speed would be too fast.

When the fire alarm sounded, the guard immediately arrived, and the room became a sea of fire, and the tongue popped out under the door. Moreover, Acha didn't even have time to open the door lock and escape.

The police were skeptical about the rapid spread of the fire. After carefully checking the surrounding area, they finally found the suspect and immediately determined: "This is a clever arson !"

As a result, the police arrested tolong, an accountant, on suspicion of arson and murder.

What tricks does Tron use to set fires in a sealed office?

Case 2: death of the cello

Anna's body is lying in the parking lot of the apartment, beside her red car. She was murdered at eight o'clock, about 15 minutes before she was scheduled to arrive at the concert.

The murderer shot twice in total. The first bullet crossed her right thigh and left a huge piece of blood on her purple skirt. The second fatal bullet shot her heart and left blood on her white shirt.

Miss Anna's cello is in the car.

The police heard the testimony of three people.

The landlord's wife, who found the body, said that Anna decided to attend the concert but did not perform the concert, because a person who pursued her excessively enthusiastically troubled her. He was Peter, who was also a member of the orchestra. For a week, Anna has not practiced or removed the cello from the car.

Peter insisted that he and Anna had gotten married, and that she was about to perform, and that she would pick him up at 08:10, and then take a bus to the theater as usual. But he didn't wait for her.

The conductor Jack said that female members of the orchestra wear purple skirts and white shirts, while male members wear white suits and black trousers. There is no rigid rule on style. Members of the orchestra wear clothes at home. He also said that Anna can have good performances without practice, because concerts are repetitive programs.

After hearing the testimony of three people, the Inspector immediately knew Peter was lying. How do you know? Think about it too.