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#include <functional>
#include <algorithm>
#include <iterator>
#include <iostream>
#include <numeric>
#include <vector>
int main() {
int Idx = 0;
int Step = 0;
bool Continue = true;
std::vector<int>A = {0, 0, 0, 0};
std::vector<std::vector<int>> Matrix = {{3,2},{2,3},{1,0},{4,1},{4,4}};
auto P1 = [&]() -> void { A[0]++; };
auto P2 = [&]() -> void { A[1] += A[3] + 1; };
auto P3 = [&]() -> void { A[2] += ((A[0] + A[1]) % 3 == 0) ? 0 : 7; };
auto P4 = [&]() -> void { A[3] += ((A[0] + A[2]) % 5 == 4) ? 0 : 1; };
auto Fp = [&]() -> void { };
auto D1 = [&]() -> bool { return std::accumulate(A.begin(), A.end(), 0) % 2 == 0; };
auto D2 = [&]() -> bool { return std::accumulate(A.begin(), A.end(), 0) % 7 > 0; };
auto D3 = [&]() -> bool { return std::find_if(A.begin(), A.end(), [](int i){ return i % 2 > 0; }) == A.end(); };
auto D4 = [&]() -> bool { return std::accumulate(A.begin(), A.end(), 0) > 24; };
auto Fd = [&]() -> bool { Continue = false; return false; };
auto Print = [&]() -> void {
std::cout << "Step: " << Step << "\tProc: " << (Idx+1) << "\t";
std::copy(A.begin(), A.end(), std::ostream_iterator<int>(std::cout, "\t"));
std::cout << std::endl;
};
using Process = std::function<void()>;
using Decision = std::function<bool()>;
std::vector<Process> P = {P1, P2, P3, P4, Fp};
std::vector<Decision> D = {D1, D2, D3, D4, Fd};
// Проход с начала и до конца
while(Continue) {
Print();
P[Idx]();
Idx = Matrix[Idx][(D[Idx]()) ? 0:1];
Step++;
}
std::cout << "----------------------------------------------------------------\n";
// Эмуляция восстановления в точке перед Proc-4 и продолжение
Continue = true;
Step = 9;
Idx = 3;
A = {3, 3 ,14, 1};
while(Continue) {
Print();
P[Idx]();
Idx = Matrix[Idx][(D[Idx]()) ? 0:1];
Step++;
}
std::cout << "----------------------------------------------------------------\n";
// использование прекрасного оператора GOTO!
label: if (true == false) goto label;
return 0;
}
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