Pаrovi

Дискусија

Задатак

Дат је низ бројева X. Дата је мапа веза елемената низа X по индексима P. Пронађите највећи збир пара.

[641,230,278,441,189,881,169,157,130,361,120,550,125,215,272,203,272,433,625,175,908,851,233,761,663,904,725,274,603,990,796,755,166,670,857,405,668,498,210,514,724,859,758,195,969,992,529,179,175,489,105,740,448,666,211,337,969,193,696,345,754,977,987,672,309,609,255,191,887,452,940,579,245,550,592,967,887,708,418,864,776,654,490,512,745,719,612,881,426,174,774,877,891,889,732,793,781,643,156,245,316,736,842,700,185,134,996,333,802,247,808,517,169,812,958,745,275,836,254,405,568,603,640,825,847,715,644,630,992,429,829,355,424,134,896,702,137,747,190,621,217,883,697,542,886,460,586,569,672,736,216,290,499,608,967,777,546,199,369,809,509,960,426,937,393,663,296,764,314,646,116,222,959,501,178,674,735,236,564,178,137,421,853,674,909,741,672,401,353,279,911,187,968,675,229,666,222,968,372,379,965,641,234,588,333,162,870,212,450,422,513,358,822,658,624,304,964,390,241,655,262,433,448,871,807,189,519,172,627,528,952,345,408,480,530,424,310,841,457,779,151,613,277,877,540,568,716,364,834,470,138,574,987,193,657,523,312,494,918,369,282,505,825,906,179,735,915,210,486,781,886,979,959,773,634,579,487,694,921,479,446,789,738,284,213,409,918,231,363,715,545,172,793,666,620,555,632,708,618,880,601,401,123,640,510,755,508,453,110,674,880,382,213,206,580,792,287,762,462,532,369,865,519,778,972,482,640,117,528,647,871,302,996,625,474,270,570,313,609,373,175,377,963,274,356,561,739,609,667,247,631,902,872,264,571,406,674,880,969,597,162,310,744,284,863,503,836,713,988,595,273,814,471,335,232,387,780,843,524,392,792,890,739,121,812,415,650,518,119,423,919,977,555,405,441,235,369,944,390,806,876,903,863,405,844,634,663,990,636,364,968,148,644,462,667,133,981,983,719,971,352,291,322,698,470,727,967,433,427,782,546,382,581,750,604,126,438,432,804,844,574,798,901,549,732,159,887,365,114,928,371,224,775,246,932,948,463,126,488,816,532,725,553,145,205,347,774,542,419,772,859,853,271,289,492,245,652,811,950,607,995,702,832,111,347,139,442,388,948,460,348,592,153,111,191,239,606,423,199,956,695,860,831,370,164,405,649,851,508,534,252,318,332,574,642,299,194,426,426,726,751,643,623,961,682,385,136,402,893,547,451,786,983,554,155,191,908,216,585,281,902,725,849,233,954,306]

[[488,54],[459,376],[177,87],[492,304],[373,276],[378,168],[3,72],[202,341],[464,540],[400,122],[435,233],[254,83],[493,76],[312,263],[516,434],[23,297],[42,115],[452,528],[360,112],[354,84],[228,293],[415,287],[58,16],[173,146],[133,126],[256,497],[416,431],[188,474],[325,31],[536,502],[323,50],[100,141],[30,384],[150,444],[221,231],[305,353],[55,288],[292,425],[217,36],[414,93],[364,245],[7,175],[43,105],[491,82],[281,533],[275,139],[1,162],[460,209],[345,96],[210,501],[291,472],[232,439],[176,463],[399,526],[63,344],[410,407],[441,369],[273,211],[308,332],[121,388],[532,166],[483,537],[145,524],[295,283],[448,544],[259,260],[187,510],[280,321],[129,28],[134,89],[197,241],[147,161],[251,257],[250,437],[330,331],[480,65],[149,507],[381,10],[299,473],[179,490],[389,262],[370,90],[301,117],[111,357],[73,239],[404,511],[314,253],[477,545],[347,252],[429,186],[6,478],[442,394],[131,25],[422,277],[265,500],[222,401],[223,279],[267,67],[128,340],[339,155],[505,88],[216,350],[451,11],[285,520],[38,440],[443,289],[181,433],[68,543],[104,180],[539,64],[514,107],[296,386],[358,307],[113,495],[348,470],[101,274],[46,465],[366,81],[135,462],[346,270],[172,508],[137,494],[264,342],[306,148],[196,454],[152,123],[230,482],[200,485],[49,32],[300,426],[282,234],[14,165],[77,192],[522,27],[402,329],[127,201],[530,154],[317,97],[229,420],[409,244],[542,418],[198,290],[398,227],[171,102],[79,9],[527,194],[328,219],[541,33],[48,70],[523,310],[362,397],[13,447],[266,66],[343,144],[182,170],[365,106],[167,320],[75,286],[59,8],[60,424],[517,406],[436,521],[17,499],[199,225],[427,18],[375,44],[374,119],[116,86],[237,351],[62,408],[20,311],[387,153],[432,294],[367,103],[190,61],[206,40],[337,403],[71,411],[95,421],[349,204],[352,450],[481,455],[124,203],[157,322],[214,5],[504,4],[313,489],[109,284],[334,484],[518,319],[235,303],[324,255],[158,118],[78,326],[309,0],[169,184],[193,12],[136,224],[207,355],[213,534],[371,466],[156,395],[396,242],[461,336],[393,191],[120,138],[261,269],[302,338],[92,449],[163,22],[458,249],[392,456],[359,238],[479,178],[24,51],[212,468],[108,412],[513,271],[417,110],[15,160],[91,298],[428,278],[475,189],[525,498],[361,315],[247,380],[506,130],[519,183],[69,258],[529,37],[476,430],[457,509],[382,185],[471,151],[47,469],[486,142],[487,195],[503,379],[335,114],[226,390],[243,356],[19,531],[318,74],[327,272],[56,467],[215,363],[143,140],[246,39],[391,57],[446,174],[205,80],[218,85],[538,419],[496,29],[453,98],[164,21],[99,41],[26,405],[368,316],[423,445],[515,413],[35,34],[208,438],[53,132],[535,385],[236,372],[240,333],[248,125],[94,220],[383,45],[52,268],[159,2],[377,512]]

Преостало време: 30

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Задатак

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