题目描述

在上次打劫完一条街道之后和一圈房屋后，小偷又发现了一个新的可行窃的地区。这个地区只有一个入口，我们称之为“根”。 除了“根”之外，每栋房子有且只有一个“父“房子与之相连。一番侦察之后，聪明的小偷意识到“这个地方的所有房屋的排列类似于一棵二叉树”。 如果两个直接相连的房子在同一天晚上被打劫，房屋将自动报警。

计算在不触动警报的情况下，小偷一晚能够盗取的最高金额。

输入格式

一个数N表示有N个房屋（1。 输入N个非负整数（当这个数为0时，说明这个子房子与父房子没有相连）。

输出格式

能偷盗的最高金额。

7
3 2 3 0 3 0 1

7

提示

se64,iVBORw0KGgoAAAANSUhEUgAAAa0AAAEUCAYAAACYk2mKAAAX/0lEQVR4nO3dPXPbZrrG8YuZtGmymtkUJ53gwqPKnSB/AdGNKk2arDuoFBt3mhQZd26o7oidk8bj4oyakF9gxXSuNCpMdrtFdsbrxh+ApyAp0RRAvD0Anpf/b0YTK5JIkLhxX3jwAGBvsVgsBACAA77pegEAACiK0AIAOIPQAgA4g9ACADiD0AIAOIPQAgA4g9ACADiD0AIAOIPQAgA4g9ACADiD0AIAOOPbrhcAsFmv18v9HW7fCbSH0AI2FAmpvL8hxIDmEFqAqoVVkcciwACzmNNC0Hq9ntHASnt8AOYw0kKQ2gyT9XMx6gLqI7QQnFKB9dtf+b/zjx8KPy/BBdTT45OLEYrCYVUkqLIUDDA2O6AaQgtBKBRYdcJqW4HwYtMDyiO04L3cwDIZVttywovNDyiHswfhtU4Dq8Djc3YhUA4jLXgtMxSaDqs0GaMuNkGgOEZa8JZVgbXjeRltAcURWvCStUFAcAG1EFoIS1ejLABGMKcF7zRxWHBx+EWT2ez++yg6VvTnfyo/HvNbQDWEFryTGloVA2v2+Re9HIw0TfthnGj89kr9quGVElxsjsBuHB4EdpjdLQMrThINx2ONx0MlSbz84XSkfnSm8c9/73QZgZAw0oJXTI6yJGm290E6Plb0+9ejqcXhOx1Fg2WgDWeafv9dtSdgtAWUwkgL2CH69OxRYEmS9l/odD3gups9/jmARhBaQAW937/Tk4OulwIID6EFb5g+NLjL4ucv+ni7/Hf8NKr+QCnLxzVbQDZCC6hgPnmjwVSSEl2c73e9OEAw+BBIIMfi8IMm62mrjx91/X6gaHlKoYZvr9RPm/MC0AhCC8gx/+O1+oPNK7VixcmpLl6dV79GC0AlnPIObzQ1pzXbe6c313er7251O5reX2wcJ2O9vXp8SnwpnPYOFEZowRttnogx23unl/3ldVpKxtLzZ9UfjNACCuNEDKCC6NNPuhkny29GrzU85K4YQBsILaCq4xMtY2sqri8G2kFoAQCcQWjBG6nzQBkfAWLE5FojSVKik+OKj8F8FlAKoQVkWOy9U/L5g2Ypd3Gf7b3TUX8ZWUpOuFYLaAnXaQGZ7jQaDDQaSHGc6GB1r8Hb29Hy4mJJioea1T3lHUBhnPIO75g69X1x+EFnL/sapX8CpJLhhV6d1wgsPr0YKI3QgneauF5rdvhl47t9RSbuhMF8FlAaoQXvZN4lvaELjSthlAVUwokY8E5m42/yTMIyCCygMkILYbEluABUQmjBS9aOWhhlAbUQWvCWdYcJCSygNk7EgNdyP7q+rZMzdgQlmyBQHKEF73UaXDmjOjY/oBxCC0HIDS7JbHgVOATJpgeUR2ghGIWCS6oXXgXny9jsgGoILQSncHhJxQKs5IkdbHJAdYQWglQquAxhUwPq45R3BKntACGwADP4aBIEax0kTY66CCvALEILwdsMFhMBRlABzeHwILCBwAHsxkgLWDF1mHD9OAQgYB6hheAVDauyhxF7vR7BBRjGKe8IVpmRVdZmUiXwAFRHaCFIpsOG8ALaQWghKE2HC+EFNIvQQhDaDBOCC2gOoQWvdRkghBdgHqEFb9kSGrYsB+ADQgvesTUkbF0uwCWEFrzhQii4sIyAzQgtOM/FIHBxmQEbEFpwmuvN3/XlB9pGaMFJvjV7314P0BRCC07xubn7/NoAUwgtOCGkhh7SawXKIrRgvVCbeKivG9iF0IK1aNpLvA/AA0IL1qFJP8Z7AiwRWrAGjTkf7xFCR2ihczTi8njPECpCC52i+dbD+4fQEFroBM3WHN5LhITQQqtosM3hvUUICC20gobaHt5r+IzQQuNoot3gfYePCC00hqbZPdYBfENowTgapX1YJ/AFoQVjaIz2Yx3BdYQWjKAZuoX1BVcRWqiF5ucu1h1cRGihEhqeP1iXcAmhhVJocP5i3cIFhBYKKdrQJJqa6wgv2OybrhcA9ivTxGhk7iu6DsvsyACmMNJCJva4QQ3ANoQWHqFRYRs1AVsQWrhHY0IeagRdY04LkmhGKIb5LnSNkVbgCCtURe2gC4RWoGg4MIVaQpsIrYBwrRWaVPaQIDWGKggtj5mYV6A8UAS1hrYQWh5qahKcUsE2ag1tI7Q80sYZW5QLJGoN3SG0PNDF6cWUTZioNXSN0HKc6ZMrOFkDWag12IDQclQbpxlzKjMkag12IbQcVGQDN7la234+2INag20ILcfkbdRNrs4unxvto9ZgI+496JCuN+S8x+d+c/6g1mCrb7teANTX5l7n+rloGmGi1tA1RlqOyNpwuzpMkvW8NBj3UWuwGaHlAFs3TpqJf2xdd9Qa1ggthzEZjbZQa7AFZw9azvyhmrnmk5lm62+jSMf7+xUfa8m2w0moxoX16MIyolmciOGgahvoXJOzl+qPpik/i5WM3+rquFp4LRYLDtN4qlYYzOeazO53jxRFx6q5f0StgZGW7dI20PKrbK7Lo0iDqSTFipNTnZ48ka6v9X400jrGkvFCV8ddLie6ZGodzi/P9HLwUFdfiRON316p4v6RJGotdISWxcxtnMvQen861tvzY+1v/WxyFqk/kqRE48WVKuYWzcRhJtfd5Kyn/kiKk0SnJyd6oo+6vn6v0f0ov16dmV5euIXQspjJ0JrP97MPzcwvdRQNNFWs4exG5xX3gmkk7jK57uaTiXS8vXOkjTqT4uFMN1ULTdRayDh7MAg7AkuS9p/oQJI01d1sx+8BBeynBZYk7b/Qabz855RCQ0WElqW62ZOM9TSq/tdpy8ekuf3aq7V9PTkw80jUWrgILUiTa40kSQd6UvPsLiDbXB9vl/+K6+wdIWiEVvAmOluehaF4+KrW5Diwy3zyZnUGa6KLGvNZCBvXaYVsPtHZy/5ylBXTSGDQfKLJetrq40ddvx9oNJUUJxq+rXfmIMLG2YOWanqeYT4508v+6lqaONH4xkwj4awu9zSxzuaXR4oGm1dqLa8PvHh1XusarU3UWpgILUs1t0F+fWeMOBnr7VXG2V4V0Ejc00hoTS715vpu9d2tbkfT+4uNTdUctRYmQstSzWyQX98Zo86tm7LQSNzT1jqbTy71sr+8TkvJWIuqt19ZodbCRGhZyvwGOdHZUf9+XqHurXSy0Ejc0+o6m5yp1x9JNS9kl6i1UHH2YCAmZ+vAGmp200xgAbmOT5RI4kJ2VEVoWcroxZPzS71e31vw5tzY/NU29nzd5OKFutRauAitAMz/eL86S/CpuKQTnbq/kD3RCee9owJCKwCzu9V5W9OBol5PvV1fR5ead7u4cNnkUmeXk9Qamk8udbS6kF3JCddqoRIuLrZY2gfe9Xo9Kw+D2H44CbuZq7U7jQYDjQZSHCc6WN1r8PZ2pOn9Oe9DzWqcOUithY2zBy3nyrF7V5YT2Yysw/VdVtI/AVLJ8EKvHn2mWznUWtgILctl7VXatNpcWEbkM70e5/PNg4Q5H49TELUGQssBNm+oNi8byrN5fdq8bGgPJ2I4jGP7aAu1BlsQWg6wdU+SPV/2LruqDWsEVqOyNo4u9oDpon4i1qDzQgtD6yvsWrz+RAmag1d40QMx+RtxE2uzi6fG+2j1mAjQstBRfY+Ta7Wtp8P9qDWYBtCy1FFD5vUWb1tPAfsR63BJoSW48oc8y+yqsvOIVA+4aDWYANCywNdTFZTNmGi1tA1zh70QNsbNU0kXNQausZIyzNN7glTKthEraELhJbHTDQVygNFmAwwag67EFqBMD2JDmRhZwlNYk4LgFF5gbNYLO6/snAnDGQhtAJQtgHQMFDHrvrZDqq84KIWsY3Q8lyZBlL074AsVeotb2RGLWIToeWpvL3UdaMguGBK1R2kIj+nFrFGaHmo7M1GmfRGXXUCq+jvEVyQCC3vVL07tm2foQR3mAisor9PPYLQ8khe86g6oqJRIIvJwNr8Ow5bIwuh5YmmD8/QKFCGiUPO1CPSEFoeaOvwDI0Cm7LqweQcKfWIbdwRw0Gff4zu/23f88zf6+pzzeiZNBGYBV5viafE3ZipOWYzcCSpP/+z37q79XdkNnDRRbbPp6EegzLt10vgE82A+X7f80affxdTO15LhaLzIbQ6/XYww1QlyMe6hESoWXMdqB8/jFqJLjymN5waRTuaWrnqdfrfTWy3zw03VYdUI/g8GCDio6M6jxWG42DQzPuSNt5MmE7sKSHQ9M2fTAk9yv0H6HVMBNNo8vAKvL4NAm7ff4xqlWHaYG11tXIhouQw0VoGbLrMEydhlHkb9s8NJOFJmG/KnW4K7C6RnCFidAyyHRw7fqb9SjLtkMz6FbeHFaZOswLrC7mbLcRXOEhtAxrasS16W/nte6LVNdBJfdTASXC4G1RnCFhdBqgIng2jWPZcMZUjYsA7LVCS6XAmuN4AoHd8Ro0K7GUCXYbAmsNe5S4Ia8HaXNWnQxsLZRl35jpNWgKsG0q8HYtsFxmNANRUddPgSWRF36jpFWC4qOuHY1DZsbBnu2bqgzp2pz/WWhLv3ESKsFRUZcrgaWxJ6tK6rWke31l4W69BMjrRZV2dN1qWGwZ+uOorXoUv1loS79wkirRT40gF3Ys3VHkVr0pV6pS78QWi0r0whcbBo0CDcUWRcm753ZNerSH4RWB3Z9cOOai4G1RoOwW5lbM4UUXNSmGwitlq03jCLB5TKCy05V7iUYSnBJ1KYLCK0WbW4QeY3Dh0ZBcNmlznVYde8UbxOCy22EVkvKBNaaD02C4LJD0cAyecNdmxFc7iK0WlAlsNZ8aBIEV7fKjrAIriVq006EVsOKFn4bd4fvEtfDdKPqIcGQgoudKrdwcXGDtgu+yB0vqt5k1xVZTYAybIaJeipzw12XcRGyGxhpNaRKYKV9v8mXvds07NGaZ2oHKKRRVxbq0x6ElmFp13uUncfyObhoDO3Y9V5WGRkRXNSnLQgtg8oW9a5GQHChKtOBVfRvXa/LNerTboSWIVnFXOfO7QQXytp877YvYDcx9/T9v2bezGHtQn3aixMxDGgisDb5fHIGk9/mtP1eptWl6/W4jfq0DyOtmsoGVhWMuJCni+Za9vouF3G/Qvsw0qphV8E28YGOjLiQhveueXnhxPvcHkZaFVVpFHWDxfVg2oURVzUEVju4e4Y9CK0KijSKpg6dEFxYI7DaRXDZgcODJdnSKDYPFfoWZLa8xzbjPeoOhwq7RWiVQKNoD+91Nt4bO7AeusHhwQLyzhKiQM3jPU1HHdqDw9ndYKSVg0MB3eIGuw8ILDtVDSjWWTWE1g4EVvdo1Eu8D3YzMbJiPRZDaGUgsOwResMO/fXbrKnDgKzXbMxppchrEhRUu5g7SEcddqfpu2GEXNd5GGltYa/WXkU2ZB/XUaiv20ZdhAnr9muE1gqNwT6hzhOE+rptV2q9/PZX/u/844fCD8f6fBBsaNEY7BXqPEGor9t2hddLkaDKUjDAWJcBhhaNwV5tHHqxcT2F+rpdUGjd1AmrbQXCK/R1GUxo0RjsFeo8Qaiv2xW568dkWG3LCa+Q16P3oUVjsFuo8wRlXneR5TT9eKHrNLDWCK5UXocWjcFeoc4TFH3ddZapjefwXeZ72EZYbcuo41DXn5ehRWOwW6jzBG2focoZsdVYFVhrBNc970KLxmC3UOcJurzDCnd3KW7ne9VlaEkE14pXd8QosnGaXsFFHpOr25c6nyfIefym1lPXoUF9GtB1YOGeN6FFY3DYb3+11xTafK4cbd4SjNuP5WvysODi8IOG/3yn2c9/r/4gGcsRWm/xJrSy0BjsYN08QUsNwLaPVsl63tAaX2EG6nO294uOor4GozvV/oxxS3a4uuRFaNEY7Gbt6244uGx93dRnO2Z775T87w+K+iNNu14Yj3zb9QLUZeuGtlgsUpet1+sxGlsLdK+R9W+f1D5SsT5ne78o6o8Urb6PY2lqMrV+++vRSRkh9RUvRlppQlmBtrPusOC2hkZbto3+tzHaatDH2+V/40TD8Uw3F0m3y+MZp0daLjQGRlspagbW4vCLJrOH2YEoOlb053/qLU+JO2lUZWSdz+cbrz3S8fF+reUhpBrw5ELjWaT+n99p8Ek63+t6gfzidGilsS0MaAzmzD7/opeDkVLfzTjR+O2V+nXCy2bzic5e9jV6dJgpVjJ+q6sa4RU6k4cGJSn69Ez6VGOBigj4EKG3hwdrmc81mUxWX/Oul8ZZppvB7G45oR0niYbjscbjoZIkXv5wOlI/OtO46inFKctVdWcj7e/qNZOJzqJ1YMVKhmONh0MtX/pUo36ks0m1R05bLnayYDNnQ8t8Y9Byb/aop14Uqd/vr74i9XpHOqsRXjQGM6KTsWaLhabPf9Xg0zP1P/2k0fP/02I21DK6Rnp96d9OxuSsr5EkxUPNFje6Oj/W8fm5rm4WGq+mS0b9M1xmlcApzoaWec3tzcKM6NMzRb+nHP7bf6HT9YDrrvaVMJaZ6Hq0/Fdyca7tg4DHrx4C+5r6RAAIrRX2Zs0yfWhw53P9/p2eHBh4IAOHCI0fAZhcL+tSiU6OU36+EdijiqnFkQC4xMnQamLOoOm9WRpDcxY/f3k4y/hptPuXHTO5L8wTpWWWtK8X69S6/Sj/Do4CX3MytIxrYW8WzZlP3mgwlaREF+c+nUU3LxfGUwO3CQIsR2iJvVmXLA4/aLy3+vr8cJscxYmGsyv10+a8PLdv5Ngo4AbvrtMqr9rerE/78y6Z/Fa/cHmxUqx4uRUF6/OPbxGa6a71Us9eELFARIjrcLYm7XEk1MlSbL6ihVrqulooH7UU/zPD/U++gFBSp0Pb+EOKbWkLF8IFxZLjLTE3qxbok8/Sc83/sfz5d20X/YHmo76ijSWnj/rbPnMivQ0ljSVbj/OJe56ATDSgvuiTz/p5v66hNcaHoY12po/HN+WX+dOAo8RWuu9Wa32ZuGm4xMtY2sqf64v3r+/qzQRdMHT5hrrcipQ4S2LldLCK2C2Jstx6kmsGZgnsD09XjR07yzVuf64/3y+HbVa9QauSUa7vU+/bq8cP23Xxs7uzWk9eVkaJltDO3szdIYGpZ3rZ2j9l+cLi9snw70Ju0Swfkfer+69djpC8ZZxtm2o2Xb8nTAydAyrY29WdSz2Hun5HP62YGzvXc66j9ca+fVtVr757rIvI3YXJcvB8uPck8u5NV11R3I3Im0JSgyliO0nd/ewtFXbHTkMr/UUbTc+JPxQlfbe+r3P481nN1Uag6hjrRM3YNwsfeLeqtgiuNEB6vR8e3t6OGjzOOhZjfn6TfVzWO4IZhd3xOd9Vb3xlSsODnQgW51O5ouAytONL65yrgwvvxy1ltWt+08YtP1p20TWpIcDi3JbGOYnPW07ImJxovNBjDX5VG0vE1QMtbiUaJVW846y+oSY6F1+CHjQxCl5V35L/Tq/LhaYEnGr3sxvpOS8SGQcTLU26vH98ssKtSdqV0yg6vL0CKw7hFa99rdm3X4bS+liQYwO/yy8d2+orp3wmigITS3ozLXfH0Me3+/1tmCIe9M5bEquAisr3gXWlKdw4Tm92ZpDJY1gG0NNgSb173Ny2aD3BO72qrdHfNpoa4rp0NLamrjM7M3S2NYCnWeYNfr7roGqM18nQZXzskfIa8nb0NL6n7F0hgeWDnaauGwi401YOMy2arQpTQma7jAmYqhryfnQ0uycyO0cZm6ZlVwtThPYFMt2LQsrih8DWidOi54Wj3ryZPQkuzaGG1aFpuEOk+Q97rbqgubj0q4oNQNDIrUcsnrv1hHS96H1hqNwQ6hzhN0WZ+2bBs+qHNLrqpYP1/zJrQkGoMrQp0nKPK625hPa+r5QtFmcLF+HvMqtCQagytCnSco+rqbuEbM5HOg2fBi3WTzLrQkGoNLQp0nKPO6iyxj2QZKXZplIsBYJ8V4GVprNAY3hDpPEOrr9p3pvoOveR1aEo3BFaHOE4T6uoGqvA8ticbgklDnCUJ93UBZQYTWGo3BLaHOE4T6uoEiggqtTTQGt4Q6TxDq6wayBBtam2gMAOCGb7teABsQRADghm+6XgAAAIoitAAAziC0AADOILQAAM4gtAAAziC0AADOILQAAM4gtAAAziC0AADOILQAAM4gtAAAziC0AADOILQAAM4gtAAAziC0AADOILQAAM4gtAAAziC0AADOILQAAM4gtAAAziC0AADOILQAAM4gtAAAziC0AADOILQAAM4gtAAAzvh/i+bFdSMJKAAAAAAASUVORK5CYII=" data-ke-src="http://106.53.134.113:80/admin/../data:image/png;base64,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" alt="" />3+3+1=7。