Submission #26693

#	Time	Username	Problem	Language	Result	Execution time	Memory
26693		grands	Question (Grader is different from the original contest) (CEOI14_question_grader)	C++14	Compilation error	0 ms	0 KiB

encoder

#include <cstdlib>
#include <string.h>
#include <stdio.h>
int encode(int n, int x, int y) {
	char N[100] = { 0 }, X[100] = { 0 }, Y[100] = { 0 };
	itoa(n, N, 2);
	//printf("n %d : %10s\n", n, N);
	itoa(x, X, 2);
	//printf("x %d : %10s\n", x, X);
	itoa(y, Y, 2);
	//printf("y %d : %10s\n", y, Y);
	//printf("\n");
	int i = strlen(N) - 1, j = strlen(X) - 1, k = strlen(Y) - 1;
	int ret = 1;
	while (true){
		if (ret % 2 == 0 && N[i] == X[j] && X[j] != Y[k]){
			return ret;
		}
		if (ret % 2 == 1 && N[i] == Y[k] && X[j] != Y[k]){
			return ret;
		}
		i--;
		j--;
		k--;
		if (i < 0){
			N[0] = '0';
			i = 0;
		}
		if (j < 0){
			X[0] = '0';
			j = 0;
		}
		if (k < 0){
			Y[0] = '0';
			k = 0;
		}
		ret++;
	}
}

decoder

#include <cstdlib>
#include <stdio.h>
#include <string.h>

int decode (int n, int q, int h) {
	char N[100] = { 0 }, Q[100] = { 0 } ;
	itoa(n, N, 2);
	itoa(q, Q, 2);
	int i = strlen(N) - h, j = strlen(Q) - h;
	if (h % 2 == 0){
		//ret % 2 == 0 && N[i] == X[j] && X[j] != Y[k]
		if (i < 0){
			N[0] = '0';
			i = 0;
		}
		if (j < 0){
			Q[0] = '0';
			j = 0;
		}
		return (N[i] == Q[j]);
	}
	else{
		//ret % 2 == 1 && N[i] == Y[j] && X[j] != Y[k]
		if (i < 0){
			N[0] = '0';
			i = 0;
		}
		if (j < 0){
			Q[0] = '0';
			j = 0;
		}
		return !(N[i] == Q[j]);
	}
	 
}

Compilation message (stderr)

encoder.cpp: In function 'int encode(int, int, int)':
encoder.cpp:6:14: error: 'itoa' was not declared in this scope
  itoa(n, N, 2);
              ^

decoder.cpp: In function 'int decode(int, int, int)':
decoder.cpp:7:14: error: 'itoa' was not declared in this scope
  itoa(n, N, 2);
              ^