# Editing Simulation

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== Example == | == Example == | ||

=== Problem === | === Problem === | ||

− | Given | + | Given M trees and the number of days each tree takes to grow a fruit, compute the total number of fruits after <math>N</math> days. |

− | + | ||

=== Solution === | === Solution === | ||

For each tree <math>i</math>, keep a variable <math>K_i</math> indicating the number of days it takes for the next fruit to grow. Simulate the situation day by day. On each day, decrease <math>K_i</math> by 1 and increase the fruit count by the number of <math>K_i</math>'s that equal zero, and reset these <math>K_i</math>'s. Output the total sum at the end. | For each tree <math>i</math>, keep a variable <math>K_i</math> indicating the number of days it takes for the next fruit to grow. Simulate the situation day by day. On each day, decrease <math>K_i</math> by 1 and increase the fruit count by the number of <math>K_i</math>'s that equal zero, and reset these <math>K_i</math>'s. Output the total sum at the end. |