#include <iostream>
#include <set>
#include <gondola.h>
using namespace std;
#define FOR(i, a, b) for(int i = a; i <= b; i++)
int diff(int n, int a, int b){
if(b >= a) return b - a;
else (n - a) + b;
}
int valid(int n, int inputSeq[]){
pair<int, int> prev = {-1, 0};
set<int> s;
FOR(i, 0, n - 1){
if(inputSeq[i] <= n){
if(prev.first == -1){
prev = {i, inputSeq[i]};
}else{
if(prev.second + diff(n, prev.first, i) != inputSeq[i]) return 0;
prev = {i, inputSeq[i]};
}
}else{
if(s.find(inputSeq[i]) != s.end()) return 0;
s.insert(inputSeq[i]);
}
}
return 1;
}
int replacement(int n, int gondolaSeq[], int replacementSeq[]){
return 1;
}
int countReplacement(int n, int inputSeq[]){
return 1;
}
int main(){
int t, x;
cin >> t >> x;
const int n = x;
int arr[n];
FOR(i, 0, n - 1) cin >> arr[i];
if(t <= 3) valid(x, arr);
else if(t <= 6) {
int rep[n];
replacement(x, arr, rep);
}else{
countReplacement(x, arr);
}
}
Compilation message
gondola.cpp: In function 'int diff(int, int, int)':
gondola.cpp:9:18: warning: statement has no effect [-Wunused-value]
9 | else (n - a) + b;
| ~~~~~~~~^~~
gondola.cpp:10:1: warning: control reaches end of non-void function [-Wreturn-type]
10 | }
| ^
/usr/bin/ld: /tmp/ccWH3SVd.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccihkO7e.o:gondola.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status
