제출 #1255431

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1255431		robijoy	Finding Routers (IOI20_routers)	C++17	컴파일 에러	0 ms	0 KiB

routers

/*
 *   Starting with the name of almighty ALLAH
 */

#include "routers.h"
using namespace std;

const int N = 1e5+5;
int dp[N];


vector<int> find_routers(int size, int n, int q) {
    memset(dp,-1,sizeof(dp));
    vector<int> ans;
    ans.push_back(0);
    int last = 0;
    for (int i = 0; i < n-1; ++i)
    {
        int l = ans[ans.size()-1]+1, r = size;
        int an = 0;
        while(l<=r) {
            int mid = (l+r)>>1;
            int x = 0;

            if(dp[mid]!=-1) {
                x = dp[mid];
            }else {   
                x = use_detector(mid);
                dp[mid] = x;
            }

            if(x == last) {
                l = mid+1;
            }else{
                an = mid;
                r = mid-1;
            }
        }
        int lasti = ans[ans.size()-1];
        int dis = an - lasti;
        dis--;
        ans.push_back(lasti+(dis*2));
        last++;
    }
    return ans;
}

컴파일 시 표준 에러 (stderr) 메시지

routers.cpp: In function 'std::vector<int> find_routers(int, int, int)':
routers.cpp:13:5: error: 'memset' was not declared in this scope
   13 |     memset(dp,-1,sizeof(dp));
      |     ^~~~~~
routers.cpp:6:1: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
    5 | #include "routers.h"
  +++ |+#include <cstring>
    6 | using namespace std;