Submission #1272634

#	Time	Username	Problem	Language	Result	Execution time	Memory
1272634		raditya_noor	Xylophone (JOI18_xylophone)	C++20	Compilation error	0 ms	0 KiB

xylophone

#include <bits/stdc++.h>
using namespace std;

int main(){
	int n; cin >> n;
	int diff[n + 1] = {0};
	for(int i = 2; i <= n; i++){
		cout << "query(" << i - 1 << ", " << i << ")" << endl;
		cin >> diff[i];
	}
	int mult[n + 1] = {0}; mult[1] = 1, mult[2] = 1;
	for(int i = 3, add; i <= n; i++){
		cout << "query(" << i - 2 << ", " << i << ")" << endl;
		cin >> add;
		if(add < diff[i - 1] + diff[i]) mult[i] = -1;
		else mult[i] = 1;
	}
	int arr[n + 1] = {0}, curm = mult[1], add = n;
	for(int i = 2; i <= n; i++){
		curm *= mult[i];
		arr[i] = arr[i - 1] + curm * diff[i];
		add = min(add, n - arr[i]);
	}
	bool mun = 0; int madd = 0;
	for(int i = 1; i <= n; i++){
		arr[i] += add;
		if(arr[i] == n && !mun){
			madd = n + 1;
		}else if(arr[i] == 1) mun = 1;
	}
	for(int i = 1; i <= n; i++){
		cout << "answer(" << i << ", " << abs(madd - arr[i]) << ')' << endl;
	}
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccPZkqof.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccmdY33i.o:xylophone.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccPZkqof.o: in function `main':
grader.cpp:(.text.startup+0x30): undefined reference to `solve(int)'
collect2: error: ld returned 1 exit status