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#include <iostream>
#include <vector>
#include <algorithm>
 
using namespace std;
 
int main()
{
	int n, k, l;
	cin >> n >> k >> l;
	int m = n*k;
	vector<int> g(1,0);
	int tmp;
	for (int i = 1; i <= m; i++){
		cin >> tmp;
		g.push_back(tmp);
	}
	sort(g.begin(), g.end());
	if (g[n] - g[1]>l) { cout << 0; return 0; }
	int posMaxVol;
	const int maxvol = g[1] + l;  //max volumn
 
	vector<int>::iterator it;
	if (find(g.begin(), g.end(), maxvol ) != g.end()) {
		it = upper_bound(g.begin(), g.end(), maxvol);
		posMaxVol = it - g.begin() - 1;
	}
	else{
		it = lower_bound(g.begin(), g.end(), maxvol);
		posMaxVol = it - g.begin();
	}
 
	int cntDu = m - posMaxVol;
	long long ans = 0;
	while (cntDu>0){
		cntDu -= (k - 1);
		ans += g[posMaxVol];
		posMaxVol--;
	}
	for (int i = 1; i <= posMaxVol; i += k){
		ans += g[i];
	}
	cout << ans;
 
	return 0;
}
 

Main.java:1: error: illegal character: '#'
#include <iostream>
^
Main.java:1: error: class, interface, or enum expected
#include <iostream>
         ^
Main.java:2: error: illegal character: '#'
#include <vector>
^
Main.java:3: error: illegal character: '#'
#include <algorithm>
^
Main.java:7: error: class, interface, or enum expected
int main()
^
Main.java:10: error: class, interface, or enum expected
	cin >> n >> k >> l;
	^
Main.java:11: error: class, interface, or enum expected
	int m = n*k;
	^
Main.java:12: error: class, interface, or enum expected
	vector<int> g(1,0);
	^
Main.java:13: error: class, interface, or enum expected
	int tmp;
	^
Main.java:14: error: class, interface, or enum expected
	for (int i = 1; i <= m; i++){
	^
Main.java:14: error: class, interface, or enum expected
	for (int i = 1; i <= m; i++){
	                ^
Main.java:14: error: class, interface, or enum expected
	for (int i = 1; i <= m; i++){
	                        ^
Main.java:16: error: class, interface, or enum expected
		g.push_back(tmp);
		^
Main.java:17: error: class, interface, or enum expected
	}
	^
Main.java:19: error: class, interface, or enum expected
	if (g[n] - g[1]>l) { cout << 0; return 0; }
	^
Main.java:19: error: class, interface, or enum expected
	if (g[n] - g[1]>l) { cout << 0; return 0; }
	                                ^
Main.java:19: error: class, interface, or enum expected
	if (g[n] - g[1]>l) { cout << 0; return 0; }
	                                          ^
Main.java:21: error: class, interface, or enum expected
	const int maxvol = g[1] + l;  //max volumn
	^
Main.java:23: error: class, interface, or enum expected
	vector<int>::iterator it;
	^
Main.java:24: error: class, interface, or enum expected
	if (find(g.begin(), g.end(), maxvol ) != g.end()) {
	^
Main.java:26: error: class, interface, or enum expected
		posMaxVol = it - g.begin() - 1;
		^
Main.java:27: error: class, interface, or enum expected
	}
	^
Main.java:30: error: class, interface, or enum expected
		posMaxVol = it - g.begin();
		^
Main.java:31: error: class, interface, or enum expected
	}
	^
Main.java:34: error: class, interface, or enum expected
	long long ans = 0;
	^
Main.java:35: error: class, interface, or enum expected
	while (cntDu>0){
	^
Main.java:37: error: class, interface, or enum expected
		ans += g[posMaxVol];
		^
Main.java:38: error: class, interface, or enum expected
		posMaxVol--;
		^
Main.java:39: error: class, interface, or enum expected
	}
	^
Main.java:40: error: class, interface, or enum expected
	for (int i = 1; i <= posMaxVol; i += k){
	                ^
Main.java:40: error: class, interface, or enum expected
	for (int i = 1; i <= posMaxVol; i += k){
	                                ^
Main.java:42: error: class, interface, or enum expected
	}
	^
Main.java:45: error: class, interface, or enum expected
	return 0;
	^
Main.java:46: error: class, interface, or enum expected
}
^
34 errors

Standard output is empty