Submission #411940

#	Time	Username	Problem	Language	Result	Execution time	Memory
411940		losmi247	Gondola (IOI14_gondola)	C++14	Compilation error	0 ms	0 KiB

gondola

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N = 1e5+34;

int n,a[N];
int pos[N];

int valid(int br,int *inputseq){
    n = br;
    for(int i = 1; i <= n; i++) a[i] = inputseq[i-1];

    for(int i = 1; i <= n; i++){
        if(a[i] <= n) pos[a[i]] = i;
    }
    int lst = 0;
    bool ok = 1;
    for(int i = 1; i <= n; i++){
        if(!pos[i]) continue;
        if(!lst){
            lst = i;
            continue;
        }
        if(pos[lst] < pos[i]){
            if(pos[i]-pos[lst] != i-lst){
                ok = 0;
                break;
            }
        }
        else{
            if(pos[lst]-pos[i]-1 != lst-1+n-i){
                ok = 0;
                break;
            }
        }
        lst = i;
    }

    return ok;
}

/*int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    int a;
    cin >> a;
    int *niz = (int*)malloc(sizeof(int)*a);
    for(int i = 0; i < a; i++) cin >> niz[i];
    cout << valid(a,niz) << endl;
}*/

Compilation message (stderr)

/usr/bin/ld: /tmp/cc1w2lda.o: in function `main':
grader.cpp:(.text.startup+0xb6): undefined reference to `valid'
/usr/bin/ld: grader.cpp:(.text.startup+0x108): undefined reference to `countReplacement'
/usr/bin/ld: grader.cpp:(.text.startup+0x132): undefined reference to `replacement'
collect2: error: ld returned 1 exit status