Submission #198829

#	Time	Username	Problem	Language	Result	Execution time	Memory
198829		Markomafko972	Memory (IOI10_memory)	C++14	0 / 100	6 ms	376 KiB

memory

#include "grader.h"
#include "memory.h"

void play() {
	int v[50][5];
	for (int i = 1; i <= 50; i++) v[i][0] = 0, v[i][1] = 0;
	for (int i = 1; i <= 50; i+= 2) {
		char c1 = faceup(i);
		char c2 = faceup(i+1);
		if (c1 != c2) {
			if (v[c1-'A'+1][0] == 0) v[c1-'A'+1][0] = i;
			else v[c1-'A'+1][1] = i;
			
			if (v[c2-'A'+1][0] == 0) v[c2-'A'+1][0] = i+1;
			else v[c2-'A'+1][1] = i+1;
		}
	}
	
	for (int i = 1; i <= 50; i++) {
		if (v[i][1] != 0) {
			faceup(v[i][0]);
			faceup(v[i][1]);
		}
	}
}

Compilation message (stderr)

memory.cpp: In function 'void play()':
memory.cpp:6:40: warning: iteration 49 invokes undefined behavior [-Waggressive-loop-optimizations]
  for (int i = 1; i <= 50; i++) v[i][0] = 0, v[i][1] = 0;
                                ~~~~~~~~^~~
memory.cpp:6:20: note: within this loop
  for (int i = 1; i <= 50; i++) v[i][0] = 0, v[i][1] = 0;
                  ~~^~~~~

• Subtask 1: 0 / 50
• Subtask 2: 0 / 50