Poj 1234 ball toss

// Contributed a wa because the following sentence is ignored: "NOTE that classmate number 1 initially has the ball and tosses it to classmate K. // Thus, number 1 has not yet been tossed the ball and so does not switch the direction he is thinking. "It means that although the ball is in classmate 1's/hand, whether the ball has been passed is recorded as false! Please note! Note that "she throws it back into ss the circle one place to the left // (from her perspective) of the person who threw her the ball "should pay attention to the sentence in the brackets. It is important to say: this direction is the left and right directions of a person, // not the left and right directions of a person! # Include <iostream> # include <string> using namespace STD; struct info // {int num for storing the information of students; // char direction for students; // The imaginary direction is bool flag; // whether the ball has been taken, that is, whether a student has passed the ball to his int leftnum; // the number on his left in the eyes of other students! Int rightnum; // the number on the right of another student! Int left; // the number on his left, for itself! Int right; // the number on his right!} Info [35]; int main () {int N, K, I, pre, C, TMP; char temp; bool ff; while (CIN> N & N) {CIN> K; for (I = 1; I <= N; I ++) // input {CIN> temp; Info [I]. num = I; Info [I]. direction = temp; Info [I]. flag = false;} // returns the value of info [1] to the number of left and right sides. rightnum = 2; Info [1]. left = 2; Info [1]. leftnum = N; Info [1]. right = N; Info [N]. rightnum = 1; Info [N]. left = 1; Info [N]. leftnum = n-1; Info [N]. right = n-1; for (I = 2; I <n; I ++) {info [I]. rightnum = I + 1; Info [I]. left = I + 1; Info [I]. leftnum = I-1; Info [I]. right = I-1;} Pre = 1; C = 1; FF = false; while (1) {for (I = 1; I <= N; I ++) {If (! Info [I]. Flag) {FF = true; break ;}// you can use the following conditions to discuss four of them! If (FF) {If (info [K]. direction = 'l') {info [K]. flag = true; If (pre = info [K]. left) {info [K]. direction = 'R'; TMP = info [K]. right;} else {info [K]. direction = 'R'; TMP = info [pre]. leftnum ;}} else if (info [K]. direction = 'R') {info [K]. flag = true; If (pre = info [K]. right) {info [K]. direction = 'l'; TMP = info [K]. left;} else {info [K]. direction = 'l'; TMP = info [pre]. rightnum ;}pre = K; k = TMP; FF = false; C ++;} else break ;} cout <"Classmate" <PRE <"got the ball last after" <C-1 <"tosses. "<Endl;} system (" pause ");}