PC file

1002.cpp

@@ -0,0 +1,45 @@
+#include <iostream>
+#include <string>
+#include <algorithm>
+#include <vector>
+
+#include <cstdio>
+#include <cmath>
+#include <cstdlib>
+#include <cstring>
+
+using namespace std;
+
+int main(int argc, char* argv[]) {
+    int n;
+    vector<double> v1(1001, 0);
+    vector<double> v2(1001, 0);
+    int k;
+    double a;
+
+    scanf("%d", &n);
+    for(int i = 0; i < n; ++i) {
+        scanf("%d%lf", &k, &a);
+        v1[k] = a;
+    }
+    scanf("%d", &n);
+    for(int i = 0; i < n; ++i) {
+        scanf("%d%lf", &k, &a);
+        v2[k] = a;
+    }
+    int count = 0;
+    for(int i = 0; i <= 1000; ++i) {
+        v1[i] += v2[i];
+        if(v1[i] != 0)
+            ++count;
+    }
+    printf("%d", count);
+    for(int i = 1000; count > 0 && i >= 0 ; --i) {
+        if(v1[i] == 0)
+            continue;
+        --count;
+        printf(" %d %.1f", i, v1[i]);
+    }
+    printf("\n");
+    return 0;
+}

1003.cpp

@@ -0,0 +1,16 @@
+#include <iostream>
+#include <string>
+#include <algorithm>
+#include <vector>
+
+#include <cstdio>
+#include <cmath>
+#include <cstdlib>
+#include <cstring>
+
+using namespace std;
+
+int main(int argc, char* argv[]) {
+
+    return 0;
+}

1004.cpp

@@ -0,0 +1,16 @@
+#include <iostream>
+#include <string>
+#include <algorithm>
+#include <vector>
+
+#include <cstdio>
+#include <cmath>
+#include <cstdlib>
+#include <cstring>
+
+using namespace std;
+
+int main(int argc, char* argv[]) {
+
+    return 0;
+}

1034.cpp

@@ -0,0 +1,152 @@
+#include <iostream>
+#include <cstdio>
+#include <cstdlib>
+#include <algorithm>
+#include <map>
+#include <set>
+#include <vector>
+#include <string>
+
+//#define DEBUG
+
+
+using namespace std;
+
+const int MINNUM = 2;
+vector<int> pre;
+vector<int> bingNum;
+
+class Record{
+public:
+	string a;
+	string b;
+	int weight;
+	Record(string tmp1, string tmp2, int tmp3):a(tmp1), b(tmp2), weight(tmp3){};
+};
+
+class intRecord {
+public:
+	int a;
+	int b;
+	intRecord(int tmp1, int tmp2):a(tmp1), b(tmp2){};
+};
+
+class Gang{
+public:
+	string head;
+	int num;
+	Gang(string tmp1, int tmp2):head(tmp1), num(tmp2){};
+};
+
+bool cmp(const Gang &lhs, const Gang &rhs) {
+	return lhs.head < rhs.head;
+}
+
+int findRoot(int a) {
+	int cur = a;
+	while(cur != pre[cur]) {
+		cur = pre[cur];
+	}
+	return cur;
+}
+
+void merge(int a, int b) {
+	int ra = findRoot(a), rb = findRoot(b);
+	if(ra == rb)
+		return;
+	if(bingNum[ra] < bingNum[rb]) {
+		pre[ra] = rb;
+	}
+	else {
+		pre[rb] = ra;
+		if(bingNum[ra] == bingNum[rb])
+			bingNum[ra]++;
+	}
+}
+
+
+int main(int argc, char *argv[]) {
+#ifdef DEBUG
+	freopen("in.txt", "r", stdin);
+	freopen("out.txt", "w", stdout);
+#else
+#endif
+	int N, K;
+	scanf("%d%d", &N, &K);
+	vector<Record> records;
+	set<string> s;
+	for(int i = 0; i < N; ++i) {
+		string tmp1, tmp2;
+		int tmp3;
+		cin >> tmp1 >> tmp2 >> tmp3;
+		records.push_back(Record(tmp1, tmp2, tmp3));
+		s.insert(tmp1);
+		s.insert(tmp2);
+	}
+	map<string, int> name2id;
+	map<int, string> id2name;
+	int i = 0;
+	for(set<string>::iterator iter = s.begin(); iter != s.end(); ++iter, ++i) {
+		name2id[ (*iter) ] = i;
+		id2name[ i ] = (*iter);
+	}
+	int num = s.size();
+	vector<int> gangW(num, 0);
+	vector<intRecord> intRecords;
+
+	for(int i = 0; i < records.size(); ++i) {
+		int tmp1 = name2id[ records[i].a ], tmp2 = name2id[ records[i].b ];
+		//if(tmp1 == tmp2)
+		//	continue;
+		gangW[tmp1] += records[i].weight;
+		gangW[tmp2] += records[i].weight;
+		intRecords.push_back(intRecord(tmp1, tmp2));
+	}
+
+	// bing cha
+	for(int i = 0; i < num; ++i)
+		pre.push_back(i);
+	for(int i = 0; i < num; ++i)
+		bingNum.push_back(1);
+
+	for(int i = 0; i < intRecords.size(); ++i) {
+		merge(intRecords[i].a, intRecords[i].b);
+	}
+
+	map< int, vector<int> > links;
+	set<int> ids;
+	for(int i = 0; i < num; ++i) {
+		int id =  findRoot(i);
+		links[ id ].push_back(i);
+		ids.insert( id );
+	}
+	vector<Gang> result;
+	for(set<int>::iterator iter = ids.begin(); iter != ids.end(); ++iter) {
+		int id = *iter;
+		if(links[id].size() <= MINNUM)
+			continue;
+		int sum = 0;
+		for(int i = 0; i < links[id].size(); ++i) {
+			sum += gangW[ links[id][i] ];
+		}
+		if(sum / 2 <= K)
+			continue;
+		int head = 0;
+		for(int i = 0; i < links[id].size(); ++i) {
+			if(gangW[ links[id][i] ] > gangW[ links[id][head] ]) {
+				head = i;
+			}
+		}
+		result.push_back( Gang( id2name[ links[id][head] ], links[id].size() ) );
+	}
+
+	sort(result.begin(), result.end(), cmp);
+	cout << result.size() << endl;
+
+	for(int i = 0; i < result.size(); ++i) {
+		cout << result[i].head << " " << result[i].num << endl;
+	}
+
+
+	return 0;
+}

1038.cpp

@@ -0,0 +1,50 @@
+#include <iostream>
+#include <vector>
+#include <string>
+#include <algorithm>
+#include <cstdio>
+#include <cstdlib>
+
+using namespace std;
+
+bool cmp(const string &lhs, const string &rhs){
+	string a = lhs, b = rhs;
+	a.append(rhs);
+	b.append(lhs);
+	return a < b;
+}
+
+int main(int argc, char *argv) {
+#ifndef ONLINE_JUDGE
+	freopen("in.txt", "r", stdin);
+	freopen("out.txt", "w", stdout);
+#endif
+
+	int n;
+	cin >> n;
+	vector<string> v(n);
+	for(int i = 0; i < n; ++i)
+		cin >> v[i];
+	sort(v.begin(), v.end(), cmp);
+	bool start = false;
+	for(int i = 0; i < v.size(); ++i) {
+		if(start) {
+			cout << v[i];
+		}
+		else {
+			for(int j = 0; j < v[i].size(); ++j) {
+				if(start) {
+					cout << v[i][j];
+				}
+				else if(!start && '0' != v[i][j]) {
+					start = true;
+					cout << v[i][j];
+				}
+			}
+		}	
+	}
+	if(!start)
+		cout << "0";
+	cout << endl;
+	return 0;
+}

1064.cpp

@@ -0,0 +1,100 @@
+#include <iostream>
+#include <vector>
+#include <queue>
+#include <algorithm>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+
+using namespace std;
+
+int f[20];
+
+struct node {
+	int val;
+	node *left;
+	node *right;
+};
+
+int getRootPos(int n) {
+	if(0 == n)
+		return 0;
+	if(1 == n)
+		return 1;
+
+	int height = 0;
+	int i = 0;
+	for(; i < 20; ++i) {
+		if(n < f[i])
+			break;
+	}
+	height = i;
+	int remain = min( n - f[height - 1], (f[height] - f[height-1]) / 2 );
+	return (f[height - 1] - 1) / 2 + remain + 1;
+}
+
+node* getResult(const vector<int> &v, int startPos, int endPos) {
+	int n = endPos - startPos + 1;
+	if(n <= 0)
+		return NULL;
+	int rootPos = getRootPos(n);
+	node* root = new node();
+	root->val = v[ startPos + rootPos -1 ];
+	root->left = getResult(v, startPos, startPos + rootPos - 2);
+	root->right = getResult(v, startPos + rootPos, endPos);
+	return root;
+}
+
+void printTree(node *root) {
+	if(root == NULL)
+		return;
+	queue<node *> q;
+	vector<int> v;
+	q.push(root);
+	while(q.size() != 0) {
+		v.push_back(q.front()->val);
+		if(NULL != q.front()->left)
+			q.push(q.front()->left);
+		if(NULL != q.front()->right)
+			q.push(q.front()->right);
+		q.pop();
+	}
+	printf("%d", v[0]);
+	for(int i = 1; i < v.size(); ++i) {
+		printf(" %d", v[i]);
+	}
+	printf("\n");
+}
+
+int main(int argc, char *agrv[]) {
+	// 2 pow
+	int base = 1;
+	for(int i = 0; i < 20; ++i) {
+		f[i] = base;
+		base *= 2;
+	}
+	for(int i = 1; i < 20; ++i) {
+		f[i] += f[i-1];
+	}
+
+	// get input
+	int n;
+	scanf("%d", &n);
+	if(0 == n)
+		return 0;
+
+	vector<int> v(n);
+	for(int i = 0; i < n; ++i) {
+		scanf("%d", &v[i]);
+	}
+
+	// 
+	sort(v.begin(), v.end());
+	vector<int> result;
+	node *root = getResult(v, 0, v.size()-1);
+
+	// print result;
+	printTree(root);
+
+	return 0;
+}