import java.io.BufferedReader; import java.io.InputStreamReader; import java.util.Comparator; import java.util.Iterator; import java.util.LinkedList; import java.util.PriorityQueue; import java.util.StringTokenizer; public class sze { public static class Task { private int p; private int k; private int c; private int id; private int priority; private int startTime; public Task(int p, int k, int c, int id) { this.p = p; this.k = k; this.c = c; this.id = id; this.priority = k - c; this.startTime = -1; } public int getP() { return p; } public int getK() { return k; } public int getC() { return c; } public int getId() { return id; } public int getPriority() { return priority; } public void start(int currentTime){ this.startTime = currentTime; } public void stop(){ this.startTime = -1; } private void update(int currentTime){ if(startTime < 0){ this.priority = k - (currentTime + c); }else{ this.c -= currentTime - startTime; //this.priority = k - (currentTime + c); this.startTime = currentTime; } } @Override public boolean equals(Object obj){ return this.id == ((Task)obj).id ? true : false; } @Override public String toString() { return "[" + p + ", " + k + ", " + c + ", " + priority + ", " + startTime + ", " + id +"]"; } } public static class TaskLaunchComparator implements Comparator<Task> { public int compare(Task t0, Task t1) { return Integer.compare(t0.getP(), t1.getP()); } } public static class TaskPriorityComparator implements Comparator<Task> { public int compare(Task t0, Task t1) { return Integer.compare(t0.getPriority(), t1.getPriority()); } } public static class TaskPreemptionComparator implements Comparator<Task> { public int compare(Task t0, Task t1) { return -Integer.compare(t0.getPriority(), t1.getPriority()); } } public static final int MAX_TIMESPAN = 10000001; public static void main(String[] args) { try { BufferedReader buffReader = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer tokenzier = new StringTokenizer(buffReader.readLine()); int n = Integer.parseInt(tokenzier.nextToken()); int m = Integer.parseInt(tokenzier.nextToken()); /* Task taskTab[] = new Task[n]; PriorityQueue<Task> tasksLaunchQueue = new PriorityQueue<Task>(n, new TaskLaunchComparator()); for(int i = 0; i < n; i++){ tokenzier = new StringTokenizer(buffReader.readLine()); Task task = new Task(Integer.parseInt(tokenzier.nextToken()), Integer.parseInt(tokenzier.nextToken()), Integer.parseInt(tokenzier.nextToken()), i); taskTab[i] = task; tasksLaunchQueue.add(task); } */ PriorityQueue<Task> tasksLaunchQueue = new PriorityQueue<Task>(n, new TaskLaunchComparator()); for(int i = 0; i < n; i++){ tokenzier = new StringTokenizer(buffReader.readLine()); Task task = new Task(Integer.parseInt(tokenzier.nextToken()), Integer.parseInt(tokenzier.nextToken()), Integer.parseInt(tokenzier.nextToken()), i); tasksLaunchQueue.add(task); } PriorityQueue<Task> activeTasksQueue = new PriorityQueue<Task>(n, new TaskPriorityComparator()); PriorityQueue<Task> runningTasksQueue = new PriorityQueue<Task>(n, new TaskPreemptionComparator()); LinkedList<Task> completedTasks = new LinkedList<Task>(); boolean result = true; int currentTime = tasksLaunchQueue.peek().getP(); while(currentTime < MAX_TIMESPAN){ /* System.out.println(currentTime); */ updateQueues(currentTime, tasksLaunchQueue, activeTasksQueue, runningTasksQueue, completedTasks); while(!tasksLaunchQueue.isEmpty() && tasksLaunchQueue.peek().getP() == currentTime) activeTasksQueue.add(tasksLaunchQueue.poll()); while(!activeTasksQueue.isEmpty() && runningTasksQueue.size() < m){ activeTasksQueue.peek().start(currentTime); runningTasksQueue.add(activeTasksQueue.poll()); } while(!activeTasksQueue.isEmpty() && activeTasksQueue.peek().getPriority() < runningTasksQueue.peek().getPriority()){ Task active = activeTasksQueue.poll(); Task running = runningTasksQueue.poll(); running.stop(); activeTasksQueue.add(running); active.start(currentTime); runningTasksQueue.add(active); } /* System.out.println(tasksLaunchQueue); System.out.println(activeTasksQueue); System.out.println(runningTasksQueue); System.out.println(completedTasks); */ if(activeTasksQueue.isEmpty()){ if(tasksLaunchQueue.isEmpty()) break; }else if(activeTasksQueue.peek().getPriority() <= 0){ result = false; break; } int nextTimeStep = MAX_TIMESPAN; if(!tasksLaunchQueue.isEmpty()) nextTimeStep = Math.min(tasksLaunchQueue.peek().getP(), nextTimeStep); if(!activeTasksQueue.isEmpty() && !runningTasksQueue.isEmpty()) nextTimeStep = Math.min(currentTime + activeTasksQueue.peek().getPriority() - runningTasksQueue.peek().getPriority() + 1, nextTimeStep); int firstCompletion = MAX_TIMESPAN; for(Task task : runningTasksQueue) firstCompletion = Math.min(task.getC(), firstCompletion); nextTimeStep = Math.min(currentTime + firstCompletion, nextTimeStep); currentTime = nextTimeStep; } System.out.println(result ? "TAK" : "NIE"); } catch (Exception e) { e.printStackTrace(); } } private static void updateQueues(int currentTime, PriorityQueue<Task> tasksLaunchQueue, PriorityQueue<Task> activeTasksQueue, PriorityQueue<Task> runningTasksQueue, LinkedList<Task> completedTasks) { for(Task task : tasksLaunchQueue) task.update(currentTime); for(Task task : activeTasksQueue) task.update(currentTime); LinkedList<Task> newCompletedTasks = new LinkedList<Task>(); for(Task task : runningTasksQueue){ task.update(currentTime); if(task.getC() <= 0) newCompletedTasks.add(task); } if(!newCompletedTasks.isEmpty()){ completedTasks.addAll(newCompletedTasks); Task[] runningTasks = runningTasksQueue.toArray(new Task[0]); runningTasksQueue.clear(); for(Task task : runningTasks){ Iterator<Task> completedTasksIterator = newCompletedTasks.iterator(); boolean contains = false; while(completedTasksIterator.hasNext()){ Task completedTask = completedTasksIterator.next(); if(task.equals(completedTask)){ completedTasksIterator.remove(); contains = true; break; } } if(!contains) runningTasksQueue.add(task); } } } /* private static int tasksStartTime(Task[] taskTab){ int startTime = Integer.MAX_VALUE; for(int i = 0; i < taskTab.length; i++) startTime = Math.min(taskTab[i].getP(), startTime); return startTime; } */ }
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 | import java.io.BufferedReader; import java.io.InputStreamReader; import java.util.Comparator; import java.util.Iterator; import java.util.LinkedList; import java.util.PriorityQueue; import java.util.StringTokenizer; public class sze { public static class Task { private int p; private int k; private int c; private int id; private int priority; private int startTime; public Task(int p, int k, int c, int id) { this.p = p; this.k = k; this.c = c; this.id = id; this.priority = k - c; this.startTime = -1; } public int getP() { return p; } public int getK() { return k; } public int getC() { return c; } public int getId() { return id; } public int getPriority() { return priority; } public void start(int currentTime){ this.startTime = currentTime; } public void stop(){ this.startTime = -1; } private void update(int currentTime){ if(startTime < 0){ this.priority = k - (currentTime + c); }else{ this.c -= currentTime - startTime; //this.priority = k - (currentTime + c); this.startTime = currentTime; } } @Override public boolean equals(Object obj){ return this.id == ((Task)obj).id ? true : false; } @Override public String toString() { return "[" + p + ", " + k + ", " + c + ", " + priority + ", " + startTime + ", " + id +"]"; } } public static class TaskLaunchComparator implements Comparator<Task> { public int compare(Task t0, Task t1) { return Integer.compare(t0.getP(), t1.getP()); } } public static class TaskPriorityComparator implements Comparator<Task> { public int compare(Task t0, Task t1) { return Integer.compare(t0.getPriority(), t1.getPriority()); } } public static class TaskPreemptionComparator implements Comparator<Task> { public int compare(Task t0, Task t1) { return -Integer.compare(t0.getPriority(), t1.getPriority()); } } public static final int MAX_TIMESPAN = 10000001; public static void main(String[] args) { try { BufferedReader buffReader = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer tokenzier = new StringTokenizer(buffReader.readLine()); int n = Integer.parseInt(tokenzier.nextToken()); int m = Integer.parseInt(tokenzier.nextToken()); /* Task taskTab[] = new Task[n]; PriorityQueue<Task> tasksLaunchQueue = new PriorityQueue<Task>(n, new TaskLaunchComparator()); for(int i = 0; i < n; i++){ tokenzier = new StringTokenizer(buffReader.readLine()); Task task = new Task(Integer.parseInt(tokenzier.nextToken()), Integer.parseInt(tokenzier.nextToken()), Integer.parseInt(tokenzier.nextToken()), i); taskTab[i] = task; tasksLaunchQueue.add(task); } */ PriorityQueue<Task> tasksLaunchQueue = new PriorityQueue<Task>(n, new TaskLaunchComparator()); for(int i = 0; i < n; i++){ tokenzier = new StringTokenizer(buffReader.readLine()); Task task = new Task(Integer.parseInt(tokenzier.nextToken()), Integer.parseInt(tokenzier.nextToken()), Integer.parseInt(tokenzier.nextToken()), i); tasksLaunchQueue.add(task); } PriorityQueue<Task> activeTasksQueue = new PriorityQueue<Task>(n, new TaskPriorityComparator()); PriorityQueue<Task> runningTasksQueue = new PriorityQueue<Task>(n, new TaskPreemptionComparator()); LinkedList<Task> completedTasks = new LinkedList<Task>(); boolean result = true; int currentTime = tasksLaunchQueue.peek().getP(); while(currentTime < MAX_TIMESPAN){ /* System.out.println(currentTime); */ updateQueues(currentTime, tasksLaunchQueue, activeTasksQueue, runningTasksQueue, completedTasks); while(!tasksLaunchQueue.isEmpty() && tasksLaunchQueue.peek().getP() == currentTime) activeTasksQueue.add(tasksLaunchQueue.poll()); while(!activeTasksQueue.isEmpty() && runningTasksQueue.size() < m){ activeTasksQueue.peek().start(currentTime); runningTasksQueue.add(activeTasksQueue.poll()); } while(!activeTasksQueue.isEmpty() && activeTasksQueue.peek().getPriority() < runningTasksQueue.peek().getPriority()){ Task active = activeTasksQueue.poll(); Task running = runningTasksQueue.poll(); running.stop(); activeTasksQueue.add(running); active.start(currentTime); runningTasksQueue.add(active); } /* System.out.println(tasksLaunchQueue); System.out.println(activeTasksQueue); System.out.println(runningTasksQueue); System.out.println(completedTasks); */ if(activeTasksQueue.isEmpty()){ if(tasksLaunchQueue.isEmpty()) break; }else if(activeTasksQueue.peek().getPriority() <= 0){ result = false; break; } int nextTimeStep = MAX_TIMESPAN; if(!tasksLaunchQueue.isEmpty()) nextTimeStep = Math.min(tasksLaunchQueue.peek().getP(), nextTimeStep); if(!activeTasksQueue.isEmpty() && !runningTasksQueue.isEmpty()) nextTimeStep = Math.min(currentTime + activeTasksQueue.peek().getPriority() - runningTasksQueue.peek().getPriority() + 1, nextTimeStep); int firstCompletion = MAX_TIMESPAN; for(Task task : runningTasksQueue) firstCompletion = Math.min(task.getC(), firstCompletion); nextTimeStep = Math.min(currentTime + firstCompletion, nextTimeStep); currentTime = nextTimeStep; } System.out.println(result ? "TAK" : "NIE"); } catch (Exception e) { e.printStackTrace(); } } private static void updateQueues(int currentTime, PriorityQueue<Task> tasksLaunchQueue, PriorityQueue<Task> activeTasksQueue, PriorityQueue<Task> runningTasksQueue, LinkedList<Task> completedTasks) { for(Task task : tasksLaunchQueue) task.update(currentTime); for(Task task : activeTasksQueue) task.update(currentTime); LinkedList<Task> newCompletedTasks = new LinkedList<Task>(); for(Task task : runningTasksQueue){ task.update(currentTime); if(task.getC() <= 0) newCompletedTasks.add(task); } if(!newCompletedTasks.isEmpty()){ completedTasks.addAll(newCompletedTasks); Task[] runningTasks = runningTasksQueue.toArray(new Task[0]); runningTasksQueue.clear(); for(Task task : runningTasks){ Iterator<Task> completedTasksIterator = newCompletedTasks.iterator(); boolean contains = false; while(completedTasksIterator.hasNext()){ Task completedTask = completedTasksIterator.next(); if(task.equals(completedTask)){ completedTasksIterator.remove(); contains = true; break; } } if(!contains) runningTasksQueue.add(task); } } } /* private static int tasksStartTime(Task[] taskTab){ int startTime = Integer.MAX_VALUE; for(int i = 0; i < taskTab.length; i++) startTime = Math.min(taskTab[i].getP(), startTime); return startTime; } */ } |