Jeremiah_

Detective Book - CF

Mar 22nd, 2019
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  1. #include <iostream>
  2. #include <cstdio>
  3. #include <stdio.h>
  4. #include <stack>
  5. #include <list>
  6. #include <vector>
  7. #include <cmath>
  8. #include <algorithm>
  9. #include <iostream>
  10. #include <iomanip>
  11. #include <string.h>
  12. #include <sstream>
  13. #include <bitset>
  14.  
  15. using namespace std;
  16.  
  17. int main(){
  18. ios::sync_with_stdio(0);
  19.  
  20. int n, days = 0;
  21. vector<int> vec, mys;
  22.  
  23. cin >> n;
  24. for(int i=0; i<n; i++){
  25. int o;
  26. cin >> o;
  27. vec.push_back(o);
  28. }
  29. for(int i=0; i<n; i++){
  30. mys.push_back(vec[i]);
  31. for(int j=0; j<mys.size(); ++j){
  32.  
  33. if(mys[j]==i+1){
  34. mys[j] = -1;
  35. }
  36. }
  37. for(int j=0; j<mys.size(); ++j){
  38. if(mys[j]==-1){
  39. mys.erase(mys.begin()+j);
  40. j--;
  41. }
  42. }
  43. if(!mys.size()){
  44. days++;
  45. }
  46. }
  47. cout << days << '\n';
  48.  
  49.  
  50. return 0;
  51. }
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