#include <iostream> #include <vector> #include <set> #include <algorithm> using std::vector; using std::multiset; using std::cout; using std::endl; int timeNow = 0; struct Process final { int id; int begin, end, duration; int doneSoFar; int end_min_dur; Process(int id, int begin, int end, int duration) : id(id), begin(begin), end(end), duration(duration), doneSoFar(0) { end_min_dur = end-duration; } int left() const noexcept { return (duration - doneSoFar); } void calculateOneTick() noexcept { ++doneSoFar; } int canSkip() const noexcept { return end_min_dur + doneSoFar - timeNow; } bool canStart() const noexcept { return (this->begin <= timeNow); } bool finished() const noexcept { return (this->left() == 0); } bool operator<(const Process & rhs) const noexcept { return this->canSkip() < rhs.canSkip(); } }; bool compareBeginTime(const Process &a, const Process &b) noexcept { return a.begin > b.begin; } int processesNr, coresNr; vector<Process> tooEarlyProcesses; vector<Process> sortedProcesses; int main() { scanf("%d%d", &processesNr, &coresNr); sortedProcesses.reserve(processesNr); tooEarlyProcesses.reserve(processesNr); for(int i = 0; i < processesNr; ++i) { int begin, end, duration; scanf("%d%d%d", &begin, &end, &duration); tooEarlyProcesses.emplace_back(Process(i, begin, end, duration)); } std::sort(tooEarlyProcesses.begin(), tooEarlyProcesses.end(), compareBeginTime); timeNow = 0; timeNow = tooEarlyProcesses.rbegin()->begin; while(true) { // if (timeNow % 20000 == 0) // printf("Time: %d\n", timeNow); auto it = tooEarlyProcesses.rbegin(); while (it != tooEarlyProcesses.rend() && it->canStart()) { sortedProcesses.push_back(*it); tooEarlyProcesses.pop_back(); it = tooEarlyProcesses.rbegin(); // cout << it->id << " can start at " << it->begin << endl; // cout << "left " << tooEarlyProcesses.size() << " processes to start" << endl; } for(auto x = sortedProcesses.begin(); x < sortedProcesses.end(); ++x) { if (x->finished()) { // cout << x->id << " has finished!" << endl; *x = *sortedProcesses.rbegin(); --x; // std::swap(*x, *sortedProcesses.rbegin()); sortedProcesses.pop_back(); } } std::sort(sortedProcesses.begin(), sortedProcesses.end()); // for(auto x = sortedProcesses.begin(); x < sortedProcesses.end(); ++x) { // cout << "process " << x->id << " (" << x->begin << ", " << x->end << ") done: " << // x->doneSoFar << " left: " << x->left() << // " priority: " << x->canSkip() << endl; // } if (sortedProcesses.size() == 0) { printf("TAK\n"); return 0; } if (sortedProcesses[0].canSkip() < 0) { // cout << "Cant make " << sortedProcesses[0].id << " at time " << timeNow << endl; printf("NIE\n"); return 0; } int core = 0; for(auto x = sortedProcesses.begin(); x < sortedProcesses.end(); ++x) { // cout << "executing process " << x->id << " on core " << core << endl; x->calculateOneTick(); core++; if (core == coresNr) break; } ++timeNow; } printf("FAIL\n"); return 0; }
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 | #include <iostream> #include <vector> #include <set> #include <algorithm> using std::vector; using std::multiset; using std::cout; using std::endl; int timeNow = 0; struct Process final { int id; int begin, end, duration; int doneSoFar; int end_min_dur; Process(int id, int begin, int end, int duration) : id(id), begin(begin), end(end), duration(duration), doneSoFar(0) { end_min_dur = end-duration; } int left() const noexcept { return (duration - doneSoFar); } void calculateOneTick() noexcept { ++doneSoFar; } int canSkip() const noexcept { return end_min_dur + doneSoFar - timeNow; } bool canStart() const noexcept { return (this->begin <= timeNow); } bool finished() const noexcept { return (this->left() == 0); } bool operator<(const Process & rhs) const noexcept { return this->canSkip() < rhs.canSkip(); } }; bool compareBeginTime(const Process &a, const Process &b) noexcept { return a.begin > b.begin; } int processesNr, coresNr; vector<Process> tooEarlyProcesses; vector<Process> sortedProcesses; int main() { scanf("%d%d", &processesNr, &coresNr); sortedProcesses.reserve(processesNr); tooEarlyProcesses.reserve(processesNr); for(int i = 0; i < processesNr; ++i) { int begin, end, duration; scanf("%d%d%d", &begin, &end, &duration); tooEarlyProcesses.emplace_back(Process(i, begin, end, duration)); } std::sort(tooEarlyProcesses.begin(), tooEarlyProcesses.end(), compareBeginTime); timeNow = 0; timeNow = tooEarlyProcesses.rbegin()->begin; while(true) { // if (timeNow % 20000 == 0) // printf("Time: %d\n", timeNow); auto it = tooEarlyProcesses.rbegin(); while (it != tooEarlyProcesses.rend() && it->canStart()) { sortedProcesses.push_back(*it); tooEarlyProcesses.pop_back(); it = tooEarlyProcesses.rbegin(); // cout << it->id << " can start at " << it->begin << endl; // cout << "left " << tooEarlyProcesses.size() << " processes to start" << endl; } for(auto x = sortedProcesses.begin(); x < sortedProcesses.end(); ++x) { if (x->finished()) { // cout << x->id << " has finished!" << endl; *x = *sortedProcesses.rbegin(); --x; // std::swap(*x, *sortedProcesses.rbegin()); sortedProcesses.pop_back(); } } std::sort(sortedProcesses.begin(), sortedProcesses.end()); // for(auto x = sortedProcesses.begin(); x < sortedProcesses.end(); ++x) { // cout << "process " << x->id << " (" << x->begin << ", " << x->end << ") done: " << // x->doneSoFar << " left: " << x->left() << // " priority: " << x->canSkip() << endl; // } if (sortedProcesses.size() == 0) { printf("TAK\n"); return 0; } if (sortedProcesses[0].canSkip() < 0) { // cout << "Cant make " << sortedProcesses[0].id << " at time " << timeNow << endl; printf("NIE\n"); return 0; } int core = 0; for(auto x = sortedProcesses.begin(); x < sortedProcesses.end(); ++x) { // cout << "executing process " << x->id << " on core " << core << endl; x->calculateOneTick(); core++; if (core == coresNr) break; } ++timeNow; } printf("FAIL\n"); return 0; } |