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+// 2582. Pass the Pillow
+#include "leetcode.h"
+
+/*
+ * there are 'n' people standing in a line labeled from 1 to 'n'. the first
+ * person in the line is holding a pillow initially. every second, the person
+ * holding the pillow passe it to the next person standing in the line. once the
+ * pillow reaching the end of the line, the direction changes and people
+ * continue passing the pillow in the opposite direction. given the two positive
+ * integers 'n' and 'time', return the index of the peson holding the pillow
+ * after 'time' seconds.
+ */
+
+int passThePillow(int n, int time) {
+ int rounds = time / (n - 1), ans = 0;
+ ans = !(rounds % 2) ? 1 + time % (n - 1) : n - time % (n - 1);
+ return ans;
+}
+
+int main() {
+ printf("%d\n", passThePillow(4, 5)); // expect: 2
+ printf("%d\n", passThePillow(3, 2)); // expect: 3
+}