210 - Concurrency Simulator
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注意读题,每次block队列中第一个进入ready,然后重新执行lock语句!!!210-ConcurrencySimulator
#include <stdio.h> #include <string.h> #include <string> #include <queue> #include <stdlib.h> using namespace std;struct Process{ int instIdx; char inst[30][15]; Process(): instIdx(0){}; };
int data[30], insTime[5], n, quantum, flag; Process pros[50]; deque<int> redy; queue<int> block;
void execIns();
int main(){ int t; scanf("%d", &t); while(t--){ memset(data, 0, sizeof(data)); memset(pros, 0, sizeof(pros)); flag = 0; scanf("%d", &n); for(int i = 0; i < 5; ++i){ scanf("%d", insTime+i); } scanf("%d", &quantum); getchar(); for(int i = 0; i < n; ++i){ int j = 0; while(1){ scanf("%[^\n]", pros[i].inst[j]); getchar(); if(!strcmp(pros[i].inst[j], "end")){ break; } j++; } redy.push_back(i); } while(!redy.empty()){ execIns(); } printf("%s", t==0?"":"\n"); } }
void execIns(){ int p = redy.front(), time = quantum; redy.pop_front(); char* ins; while(time > 0){ ins = pros[p].inst[pros[p].instIdx]; pros[p].instIdx++; if(ins[2] == '='){ char * tempp; long temp = strtol(ins + 4, &tempp, 10); data[ins[0] - 'a'] = (int)temp; //data[ins[0] - 'a'] = ins[4] - '0'; time -= insTime[0]; }else if(ins[2] == 'i'){ printf("%d: %d\n", p+1, data[ins[6] - 'a']); time -= insTime[1]; }else if(ins[2] == 'c'){ if(!flag){ flag = 1; }else{ pros[p].instIdx--; block.push(p); return; } time -= insTime[2]; }else if(ins[2] == 'l'){ flag = 0; if(!block.empty()){ int temp = block.front(); block.pop(); redy.push_front(temp); } time -= insTime[3]; }else if(ins[2] == 'd'){ return; } } redy.push_back(p); }
// Sample Input // 3 1 1 1 1 1 1 // a = 4 // print a // lock // b = 9 // print b // unlock // print b // end // a = 3 // print a // lock // b = 8 // print b // unlock // print b // end // b = 5 // a = 17 // print a // print b // lock // b = 21 // print b // unlock // print b // end
// Sample Output // 1: 3 // 2: 3 // 3: 17 // 3: 9 // 1: 9 // 1: 9 // 2: 8 // 2: 8 // 3: 21 // 3: 21
//队列的使用以及模拟题水题
标签:210,Simulator,int,pros,ins,Concurrency,print,data,block 来源: https://www.cnblogs.com/guopinghai/p/11561455.html