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Catsher

May 22nd, 2025

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package main
import "fmt"
type Plan struct {
inv1, inv2 float64
profit float64
}
func main() {
capital, years := 10000.0, 4
profit := func(enterprise int, x float64) float64 {
if enterprise == 1 {
return 0.4 * x
}
return 0.3 * x
}
returnRate := func(enterprise int, x float64) float64 {
if enterprise == 1 {
return 0.5 * x
}
return 0.8 * x
}
dp := make([]map[float64]Plan, years+1)
for y := range dp {
dp[y] = make(map[float64]Plan)
}
// Заполняем последний год
for c := 0.0; c <= capital; c += 10 {
dp[years][c] = Plan{inv1: c, profit: profit(1, c)}
}
// Обратный проход
for y := years - 1; y >= 1; y-- {
for c := 0.0; c <= capital; c += 10 {
if y == 1 && c != capital {
continue
}
max, best := -1.0, 0.0
for x := 0.0; x <= c; x += 10 {
current := profit(1, x) + profit(2, c-x)
returned := returnRate(1, x) + returnRate(2, c-x)
total := current + dp[y+1][returned].profit
if total > max {
max, best = total, x
}
}
dp[y][c] = Plan{inv1: best, inv2: c - best, profit: max}
}
}
// Восстановление решения
var result []Plan
current := capital
total := 0.0
for y := 1; y <= years; y++ {
p := dp[y][current]
result = append(result, p)
total += profit(1, p.inv1) + profit(2, p.inv2)
current = returnRate(1, p.inv1) + returnRate(2, p.inv2)
}
// Вывод результатов
fmt.Println("┌──────────┬────────────┬────────────┐")
fmt.Println("│ Год │ Предпр. 1 │ Предпр. 2 │")
fmt.Println("├──────────┼────────────┼────────────┤")
for i, p := range result {
fmt.Printf("│ %-8d │ %10.2f │ %10.2f │\n", i+1, p.inv1, p.inv2)
if i < len(result)-1 {
fmt.Println("├──────────┼────────────┼────────────┤")
}
}
fmt.Println("└──────────┴────────────┴────────────┘")
fmt.Printf("\nИтоговый доход: \033[1;32m%.2f\033[0m\n", total)
}

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