133 {
134 int size = vec.size();
135 IntVec::iterator first = vec.begin();
136 IntVec::iterator last = vec.end();
137 for(IntVec::iterator i = first + 1; i != last; ++i)
138 {
139 std::iter_swap(i, first + rand()%((i - first)+ 1));
140 }
141 return vec;
142 }
榪欎釜鍛紝涓嶄細褰卞搷婧愭暟緇勶紝榪欎釜
2錛夊彇M嬈★紝姣忔鍋氫釜浜嬫儏灝辨槸闅忔満鍑轟竴涓暟錛屾坊鍔犲埌鐩爣鏁扮粍閲岄潰錛岀劧鍚庝粠婧愭暟緇勪腑鍒犻櫎銆傘?font color="#000000" face="Verdana">
143
144 IntVec shuffle(IntVec& vec, int count)
145 {
146 IntVec desVec;
147 for(int i = 0; i < count;i++)
148 {
149 int random = rand()%vec.size();
150 desVec.push_back(vec[random]);
151 vec.erase(remove(vec.begin(),vec.end(),vec[random]),vec.end());
152 }
153 return desVec;
154 }
榪欎釜鍛紝浼氬獎鍝嶆簮鏁扮粍銆?br />3錛夊彇M嬈★紝鍊熷姪涓涓緟鍔╂暟緇勮褰曞摢涓暟鎹鍙栬繃錛岄殢鏈哄嚭涓涓暟錛屾坊鍔犲埌鐩爣鏁扮粍閲岄潰錛岀劧鍚庡皢榪欎釜鍊兼坊鍔犲埌杈呭姪鏁扮粍閲岄潰.
IntVec shuffle2(IntVec& vec, int count)
158 {
159 IntVec desVec;
160 IntVec flagVec;
161 for(int j = 0; j < count; j++)
162 {
163 flagVec.push_back(0);
164 }
165 for(int i = 0; i < count;i++)
166 {
167
168 int random = rand()%vec.size();
169 if (flagVec[random] == 0)
170 {
171 desVec.push_back(vec[random]);
172 flagVec[random] = 1;
173 }
174 else
175 {
176 i--;// 濡傛灉宸茬粡鍙栬繃浜嗭紝榪欐涓嶇畻.
177 }
178
179 }
180 return desVec;
181 }
]]>