Submission #363458

#	Time	Username	Problem	Language	Result	Execution time	Memory
363458		Thistle	Xylophone (JOI18_xylophone)	C++14	Compilation error	0 ms	0 KiB

xylophone

#include <cstdio>
#include <cstdlib>
#include "xylophone.h"

static const int N_MAX = 5000;
static const int Q_MAX = 10000;
static int N;
static int A[N_MAX];
static bool used[N_MAX];
static int query_c;
static int answer_c;

int query(int s, int t) {
	if(query_c >= Q_MAX) {
		printf("Wrong Answer\n");
		exit(0);
	}
	query_c++;
	if(!(1 <= s && s <= t && t <= N)) {
		printf("Wrong Answer\n");
		exit(0);
	}
	int mx = 0, mn = N + 1;
	for(int i = s - 1; i < t; i++) {
		if(mx < A[i]) {
			mx = A[i];
		}
		if(mn > A[i]) {
			mn = A[i];
		}
	}
	return mx - mn;
}

void answer(int i, int a) {
	answer_c++;
	if(!(1 <= i && i <= N)) {
		printf("Wrong Answer\n");
		exit(0);
	}
	if(!(1 <= a && a <= N)) {
		printf("Wrong Answer\n");
		exit(0);
	}
	if(used[i - 1]) {
		printf("Wrong Answer\n");
		exit(0);
	}
	if(a != A[i - 1]) {
		printf("Wrong Answer\n");
		exit(0);
	}
	used[i - 1] = true;
}

int main() {
	query_c = 0;
	answer_c = 0;
	if(scanf("%d", &N) != 1) {
		fprintf(stderr, "Error while reading input\n");
		exit(1);
	}
	for(int i = 0; i < N; i++) {
		if(scanf("%d", A + i) != 1) {
			fprintf(stderr, "Error while reading input\n");
			exit(1);
		}
		used[i] = false;
	}
	solve(N);
	if(!(answer_c == N)) {
		printf("Wrong Answer\n");
		exit(0);
	}
	printf("Accepted : %d\n", query_c);
}

Compilation message (stderr)

/tmp/ccMhvB45.o: In function `query(int, int)':
grader.cpp:(.text+0x0): multiple definition of `query(int, int)'
/tmp/cc9mLFDe.o:xylophone.cpp:(.text+0x0): first defined here
/tmp/ccMhvB45.o: In function `answer(int, int)':
grader.cpp:(.text+0x90): multiple definition of `answer(int, int)'
/tmp/cc9mLFDe.o:xylophone.cpp:(.text+0xa0): first defined here
/tmp/ccMhvB45.o: In function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/cc9mLFDe.o:xylophone.cpp:(.text.startup+0x0): first defined here
/tmp/cc9mLFDe.o: In function `main':
xylophone.cpp:(.text.startup+0x7c): undefined reference to `solve(int)'
/tmp/ccMhvB45.o: In function `main':
grader.cpp:(.text.startup+0x2c): undefined reference to `solve(int)'
collect2: error: ld returned 1 exit status