45 lines
870 B
C++
45 lines
870 B
C++
#include <stdio.h>
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int read_num() {
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int summ = 0;
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char c = getchar();
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while (c < '0' || c > '9') {
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c = getchar();
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}
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while (c >= '0' && c <= '9') {
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summ = summ * 10 + c - '0';
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c = getchar();
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}
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return summ;
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}
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int main() {
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int n = 0;
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int save[32] = {0};
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int cur_num = 0;
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int digit_num = 0;
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int result = 0;
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int index = 0;
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scanf("%d", &n);
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for (int count = 0; count < 3 * n - 1; count++) {
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// scanf("%d", &cur_num);
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cur_num = read_num();
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index = 0;
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while (cur_num) {
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if (cur_num & 1) {
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save[index]++;
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}
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index++;
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cur_num /= 2;
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}
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}
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for (int i = 0; i < 32; i++) {
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if (save[i] % 3) {
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result |= 1 << i;
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}
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}
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printf("%d", result);
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return 0;
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} |