Submission #1625337

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Source Code Expand

#include<iostream>
#include<string>
#include<string.h>
#include<algorithm>
#include<stdio.h>
#include<cmath>
#include<vector>
#include<utility>
#include<queue>
#include<stack>
#include<stdlib.h>
#define FOR(i, a, b) for(int i=(a);i<=(b);i++)
#define RFOR(i, a, b) for(int i=(a);i>=(b);i--)
#define MOD 1000000007

using namespace std;


int main(void) {
	int n;
	char p[10001][10], q[10001][3], r[10001][21];
	string s;
	cin >> n;
	FOR(i, 1, n) {
		cin >> p[i] >> q[i] >> r[i];
		if (strcmp(p[i], "BEGINNING") == 0) {
			s.push_back(r[i][0]);
		}
		else if (strcmp(p[i], "END") == 0) {
			FOR(t, 0, 20) {
				if (r[i][t] == '\0') {
					s.push_back(r[i][t - 1]);
					break;
				}
			}
		}
		else if (strcmp(p[i], "MIDDLE") == 0) {
			FOR(t, 0, 20) {
				if (r[i][t] == '\0') {
					s.push_back(r[i][t/2]);
					break;
				}
			}
		}
	}
	cout << s << endl;
	return 0;
}

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