{"id":156,"date":"2020-02-18T09:26:00","date_gmt":"2020-02-18T09:26:00","guid":{"rendered":"https:\/\/imwarming.com\/?p=156"},"modified":"2020-02-18T09:26:00","modified_gmt":"2020-02-18T09:26:00","slug":"%e6%9c%80%e5%a4%a7%e5%a0%86","status":"publish","type":"post","link":"https:\/\/imwarming.com\/?p=156","title":{"rendered":"\u6700\u5927\u5806"},"content":{"rendered":"
\n
typedef struct<\/span> heapstruct *maxheap;\n<\/span>struct<\/span> heapstruct{\n    <\/span>int<\/span> *elements;\/*<\/span> \u5b58\u50a8\u5806\u5143\u7d20\u7684\u6570\u7ec4 <\/span>*\/<\/span>\n    int<\/span> size;\/*<\/span> \u5806\u7684\u5f53\u524d\u5143\u7d20\u4e2a\u6570 <\/span>*\/<\/span>\n    int<\/span> capacity;\/*<\/span> \u5806\u7684\u6700\u5927\u5bb9\u91cf <\/span>*\/<\/span>\n};\n\nmaxheap create(<\/span>int<\/span> maxsize){\n    <\/span>\/*<\/span> \u521b\u5efa\u5bb9\u91cf\u4e3amaxsize\u7684\u7a7a\u7684\u6700\u5927\u5806 <\/span>*\/<\/span>\n    maxheap h <\/span>= malloc<\/span>(sizeof<\/span>(struct<\/span> heapstruct));\n    h<\/span>->elements = malloc<\/span>((maxsize+1<\/span>) * sizeof<\/span>(int<\/span>)); \n    h<\/span>->size = 0<\/span>;\n    h<\/span>->capacity = maxsize;\n    h<\/span>->elements[0<\/span>] = maxdata;\n    <\/span>\/*<\/span> \u5b9a\u4e49“\u54e8\u5175”\u4e3a\u5927\u4e8e\u5806\u4e2d\u6240\u6709\u53ef\u80fd\u5143\u7d20\u7684\u503c\uff0c\u4fbf\u4e8e\u4ee5\u540e\u66f4\u5feb\u64cd\u4f5c <\/span>*\/<\/span>\n    return<\/span> h;\n}\n\n<\/span>void<\/span> insert(maxheap h,int<\/span> item){\n    <\/span>int<\/span> i;\n    <\/span>if<\/span>(isfull(h)){\n        cout<\/span><<\"<\/span>\u5806\u6ee1\u4e86<\/span>\"<\/span><<endl;\n        <\/span>return<\/span>;\n    }\n    i <\/span>= ++h->size;\n    <\/span>for<\/span>(; h->elements[i\/2<\/span>] < item; i\/=2<\/span>){\n        h<\/span>->elements[i] = h->elements[i\/2<\/span>];\n    }\n    h<\/span>->elements[i] = item;\n}\n\n<\/span>int<\/span> deletemax(maxheap h){\n    <\/span>int<\/span> parent,child;\n    <\/span>int<\/span> maxitem,temp;\n    <\/span>if<\/span>(isempty(h)){\n        cout<\/span><<\"<\/span>\u6700\u5927\u5806\u7a7a<\/span>\"<\/span><<endl;\n        <\/span>return<\/span>;\n    }\n    maxitem <\/span>= h->elements[1<\/span>];\n    temp <\/span>= h->elements[h->size--];\n    <\/span>for<\/span>(parent = 1<\/span>; parent*2<\/span> <= h->size; parent = child){\n        child <\/span>= parent * 2<\/span>;\n        <\/span>if<\/span>((child != h->size)&&\n           (h<\/span>->elements[child] < h->elements[child+1<\/span>]))\n            child<\/span>++;\n        <\/span>if<\/span>(temp >= h->elements[child])break<\/span>;\n        <\/span>else<\/span>\n            h<\/span>->elements[parent] = h->elements[child];\n    }\n    h<\/span>->elements[parent] = temp;\n    <\/span>return<\/span> maxitem;\n}<\/span><\/pre>\n<\/div>\n
\u6700\u5927\u5806\uff08\u5347\u5e8f\u5927\u9876\u5806\uff0c \u964d\u5e8f\u5c0f\u9876\u5806\uff09<\/p>\n
\n
#include<bits\/stdc++.h>\nusing<\/span> namespace<\/span> std;\ntypedef <\/span>long<\/span> long<\/span> ll;\n<\/span>const<\/span> int<\/span> maxn = 1e7 + 5<\/span>;\n<\/span>int<\/span> n, m, k, sum, a[maxn];\n<\/span>string<\/span> s;\nqueue<\/span><int<\/span>> q;\n\n<\/span>void<\/span> up(int<\/span> p){\n    <\/span>while<\/span>(p > 1<\/span> && a[p] > a[p \/ 2<\/span>]){\n        swap(a[p], a[p <\/span>\/ 2<\/span>]);\n        p <\/span>= p \/ 2<\/span>;\n    }\n}\n\n<\/span>void<\/span> down(int<\/span> p){\n    <\/span>while<\/span>(p * 2<\/span> <= n){\n        <\/span>int<\/span> u = p * 2<\/span>;\n        <\/span>if<\/span>(u + 1<\/span> <= n && a[u + 1<\/span>] > a[u]){\n            u<\/span>++;\n        }\n        <\/span>if<\/span>(a[u] > a[p]){\n            swap(a[u], a[p]);\n            p <\/span>= u;\n        }\n        <\/span>else<\/span> break<\/span>;\n    }\n}\n\n<\/span>void<\/span> makeheap(){\n    <\/span>for<\/span>(int<\/span> i = n \/ 2<\/span>; i >= 1<\/span>; i--){\n        down(i);\n    }\n}\n\n<\/span>void<\/span> push(int<\/span> x){\n    a[<\/span>++n] = x;\n    up(n);\n}\n\n<\/span>int<\/span> top(){\n    <\/span>return<\/span> a[1<\/span>];\n}\n\n<\/span>void<\/span> pop(){\n    swap(a[<\/span>1<\/span>], a[n--]);\n    down(<\/span>1<\/span>);\n}\n\n<\/span>int<\/span> main(){\n    <\/span>\/\/<\/span>ios_base::sync_with_stdio(0);\n    <\/span>\/\/<\/span>cin.tie(); cout.tie();<\/span>\n    n = 10<\/span>;\n    <\/span>for<\/span>(int<\/span> i = 1<\/span>; i <= n; i++)\n        a[i] <\/span>= i;\n    makeheap();\n    <\/span>for<\/span>(int<\/span> i = 1<\/span>; i <= 10<\/span>; i++){\n        push(i <\/span>+ 10<\/span>);\n    }\n    <\/span>while<\/span>(n > 0<\/span>){\n        cout<\/span><<top()<<endl;\n        pop();\n    }\n    <\/span>return<\/span> 0<\/span>;\n}<\/span><\/pre>\n<\/div>\n
c++<\/p>\n","protected":false},"excerpt":{"rendered":"
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