{"id":302734,"date":"2024-05-20T18:42:50","date_gmt":"2024-05-20T10:42:50","guid":{"rendered":""},"modified":"2024-05-20T18:43:20","modified_gmt":"2024-05-20T10:43:20","slug":"c-%e8%af%ad%e8%a8%80%e7%bc%96%e7%a8%8b%e5%a6%82%e4%bd%95%e8%ae%a1%e7%ae%97-100-%e4%bb%a5%e5%86%85%e8%b4%a8%e6%95%b0%e7%9b%b8%e5%8a%a0","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/302734.html","title":{"rendered":"c \u8bed\u8a00\u7f16\u7a0b\u5982\u4f55\u8ba1\u7b97 100 \u4ee5\u5185\u8d28\u6570\u76f8\u52a0"},"content":{"rendered":"<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/26215028\/f965ed33-6085-45cd-9001-ba054f64f451.webp\" alt=\"c \u8bed\u8a00\u7f16\u7a0b\u5982\u4f55\u8ba1\u7b97 100 \u4ee5\u5185\u8d28\u6570\u76f8\u52a0\" \/><\/p>\n<p><p>C\u8bed\u8a00\u7f16\u7a0b\u8ba1\u7b97100\u4ee5\u5185\u8d28\u6570\u76f8\u52a0\u4e3b\u8981\u6d89\u53ca\u5230<strong>\u8d28\u6570\u7684\u5b9a\u4e49\u3001\u8d28\u6570\u7684\u5224\u5b9a\u65b9\u6cd5\u3001\u7d2f\u52a0\u7b97\u6cd5\u7684\u5b9e\u73b0<\/strong>\u3002\u5728C\u8bed\u8a00\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u7f16\u5199\u4e00\u4e2a\u5faa\u73af\u7ed3\u6784\u6765\u5224\u65ad\u6bcf\u4e2a\u5c0f\u4e8e100\u7684\u6570\u662f\u5426\u4e3a\u8d28\u6570\uff0c\u5e76\u5bf9\u6240\u6709\u5224\u65ad\u4e3a\u8d28\u6570\u7684\u6570\u6267\u884c\u7d2f\u52a0\u64cd\u4f5c\u3002<strong>\u9996\u5148\uff0c\u8d28\u6570\u662f\u53ea\u80fd\u88ab1\u548c\u81ea\u8eab\u6574\u9664\u7684\u81ea\u7136\u6570<\/strong>\uff0c\u56e0\u6b64\u6211\u4eec\u9700\u8981\u4e00\u4e2a\u51fd\u6570\u6765\u68c0\u67e5\u4e00\u4e2a\u6570\u662f\u5426\u6ee1\u8db3\u8fd9\u4e2a\u6761\u4ef6\u3002<strong>\u5176\u6b21\uff0c\u901a\u8fc7\u4e00\u4e2a\u5faa\u73af\u4ece2\u5f00\u59cb\u5230100\uff0c\u4f7f\u7528\u8fd9\u4e2a\u51fd\u6570\u6765\u7b5b\u9009\u51fa\u6240\u6709\u7684\u8d28\u6570\uff0c\u5e76\u5c06\u5b83\u4eec\u7d2f\u52a0\u8d77\u6765<\/strong>\u3002<\/p>\n<\/p>\n<p><h3>\u4e00\u3001\u8d28\u6570\u7684\u5b9a\u4e49\u4e0e\u5224\u5b9a<\/h3>\n<\/p>\n<p><p>\u8d28\u6570\uff08Prime number\uff09\u662f\u6307\u5728\u5927\u4e8e1\u7684\u81ea\u7136\u6570\u4e2d\uff0c\u9664\u4e861\u548c\u5176\u672c\u8eab\u4ee5\u5916\u4e0d\u518d\u6709\u5176\u4ed6\u56e0\u6570\u7684\u6570\u3002\u5177\u4f53\u5bf9\u4e8e\u4e00\u4e2a\u6570n\u6765\u8bf4\uff0c\u5982\u679c\u5b83\u7684\u6240\u6709\u53ef\u80fd\u56e0\u6570\uff08\u53732\u5230\u221an\u4e4b\u95f4\u7684\u6240\u6709\u6570\uff09\u90fd\u4e0d\u80fd\u88abn\u6574\u9664\uff0c\u5219n\u4e3a\u4e00\u4e2a\u8d28\u6570\u3002<\/p>\n<\/p>\n<p><p>\u60f3\u8981\u5224\u5b9a\u4e00\u4e2a\u6570\u662f\u5426\u662f\u8d28\u6570\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u7f16\u5199\u4e00\u4e2a\u540d\u4e3a<code>isPrime<\/code>\u7684\u51fd\u6570\u3002\u8fd9\u4e2a\u51fd\u6570\u4ece2\u5f00\u59cb\u68c0\u67e5\uff0c\u4e00\u76f4\u5230\u8fd9\u4e2a\u6570\u7684\u5e73\u65b9\u6839\uff0c\u6765\u786e\u5b9a\u6ca1\u6709\u5176\u4ed6\u6570\u53ef\u4ee5\u6574\u9664\u5b83\u3002<\/p>\n<\/p>\n<p><h3>\u4e8c\u3001\u8d28\u6570\u68c0\u6d4b\u51fd\u6570\u7684\u5b9e\u73b0<\/h3>\n<\/p>\n<p><pre><code class=\"language-c\">#include &lt;stdio.h&gt;<\/p>\n<p>#include &lt;math.h&gt;<\/p>\n<p>\/\/ \u8d28\u6570\u68c0\u6d4b\u51fd\u6570<\/p>\n<p>int isPrime(int num) {<\/p>\n<p>    if (num &lt;= 1) return 0; \/\/ \u975e\u6b63\u6574\u6570\u548c1\u4e0d\u662f\u8d28\u6570<\/p>\n<p>    int sqrtNum = (int)sqrt(num);<\/p>\n<p>    for (int i = 2; i &lt;= sqrtNum; i++) {<\/p>\n<p>        if (num % i == 0) return 0; \/\/ \u5982\u679c\u53d1\u73b0\u80fd\u88ab\u6574\u9664\uff0c\u5219\u4e0d\u662f\u8d28\u6570<\/p>\n<p>    }<\/p>\n<p>    return 1; \/\/ \u627e\u4e0d\u5230\u9664\u6570\uff0c\u5219\u662f\u8d28\u6570<\/p>\n<p>}<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4e0a\u8ff0\u4ee3\u7801\u68c0\u67e5\u4e86\u6bcf\u4e2a\u6570\u662f\u5426\u4e3a\u8d28\u6570\u3002\u73b0\u5728\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u8fd9\u4e2a\u51fd\u6570\u6765\u627e\u51fa2\u5230100\u4e4b\u95f4\u7684\u6240\u6709\u8d28\u6570\u3002<\/p>\n<\/p>\n<p><h3>\u4e09\u3001\u8d28\u6570\u7684\u7d2f\u52a0\u7b97\u6cd5\u5b9e\u73b0<\/h3>\n<\/p>\n<p><pre><code class=\"language-c\">\/\/ \u8ba1\u7b97100\u4ee5\u5185\u6240\u6709\u8d28\u6570\u7684\u548c<\/p>\n<p>int sumOfPrimesUpTo100() {<\/p>\n<p>    int sum = 0;<\/p>\n<p>    for (int num = 2; num &lt; 100; num++) {<\/p>\n<p>        if (isPrime(num)) {<\/p>\n<p>            sum += num; \/\/ \u5982\u679c\u662f\u8d28\u6570\uff0c\u5219\u52a0\u5165\u7d2f\u52a0\u5668<\/p>\n<p>        }<\/p>\n<p>    }<\/p>\n<p>    return sum;<\/p>\n<p>}<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u56db\u3001\u4e3b\u7a0b\u5e8f\u7ed3\u6784<\/h3>\n<\/p>\n<p><p>\u6700\u540e\uff0c\u5728m<a href=\"https:\/\/docs.pingcode.com\/blog\/59162.html\" target=\"_blank\">AI<\/a>n\u51fd\u6570\u4e2d\uff0c\u6211\u4eec\u8c03\u7528<code>sumOfPrimesUpTo100<\/code>\u51fd\u6570\u5e76\u6253\u5370\u51fa\u7ed3\u679c\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-c\">int main() {<\/p>\n<p>    int sum = sumOfPrimesUpTo100();<\/p>\n<p>    printf(&quot;100\u4ee5\u5185\u6240\u6709\u8d28\u6570\u4e4b\u548c\u4e3a\uff1a%d\\n&quot;, sum);<\/p>\n<p>    return 0;<\/p>\n<p>}<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p><strong>\u6574\u4e2a\u7a0b\u5e8f\u7684\u6838\u5fc3\u903b\u8f91<\/strong>\u5c31\u662f\u901a\u8fc7<code>isPrime<\/code>\u51fd\u6570\u6765\u5224\u5b9a\u6bcf\u4e00\u4e2a\u5c0f\u4e8e100\u7684\u6570\u662f\u5426\u4e3a\u8d28\u6570\uff0c\u5e76\u4f7f\u7528\u4e00\u4e2a\u5faa\u73af\u7ed3\u6784\u53bb\u7d2f\u52a0\u8fd9\u4e9b\u8d28\u6570\u3002<\/p>\n<\/p>\n<p><p>C\u8bed\u8a00\u63d0\u4f9b\u7684\u5faa\u73af\u7ed3\u6784\uff08\u5982<code>for<\/code>\u3001<code>while<\/code>\u7b49\uff09\u548c\u6761\u4ef6\u5224\u65ad\uff08\u50cf<code>if-else<\/code>\uff09\u662f\u7f16\u5199\u6b64\u7c7b\u7b97\u6cd5\u7684\u57fa\u7840\uff0c\u7a0b\u5e8f\u7684\u6b63\u786e\u6027\u548c\u6548\u7387\u5f88\u5927\u7a0b\u5ea6\u4e0a\u53d6\u51b3\u4e8e\u5bf9\u8fd9\u4e9b\u57fa\u672c\u7ed3\u6784\u7684\u59a5\u5584\u5e94\u7528\u548c\u4f18\u5316\u3002\u5728\u5b9e\u73b0\u8d28\u6570\u7d2f\u52a0\u65f6\uff0c\u8fd8\u53ef\u4ee5\u91c7\u7528\u8bf8\u5982\u57c3\u62c9\u6258\u65af\u7279\u5c3c\u7b5b\u6cd5\uff08Sieve of Eratosthenes\uff09\u7b49\u66f4\u9ad8\u6548\u7684\u7b97\u6cd5\u6765\u83b7\u5f97\u4e00\u5b9a\u8303\u56f4\u5185\u7684\u6240\u6709\u8d28\u6570\u5217\u8868\uff0c\u4ece\u800c\u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u8ba1\u7b97\uff0c\u8fd9\u5bf9\u4e8e\u5b9e\u9645\u7f16\u7a0b\u95ee\u9898\u4e2d\u5904\u7406\u5927\u89c4\u6a21\u6570\u636e\u548c\u4f18\u5316\u6027\u80fd\u81f3\u5173\u91cd\u8981\u3002\u5728\u672c\u4f8b\u4e2d\uff0c\u7531\u4e8e\u8ba1\u7b97\u91cf\u76f8\u5bf9\u8f83\u5c0f\uff0c\u76f4\u63a5\u904d\u5386\u5e76\u5224\u65ad\u8d28\u6570\u5df2\u7ecf\u8db3\u591f\u9ad8\u6548\u3002<\/p>\n<\/p>\n<p><p>\u6b64\u5916\uff0c\u4ece\u4e00\u4e2a\u8f83\u5e95\u5c42\u7684\u89d2\u5ea6\u770b\uff0cC\u8bed\u8a00\u4f5c\u4e3a\u4e00\u79cd\u63a5\u8fd1\u786c\u4ef6\u7684\u7f16\u7a0b\u8bed\u8a00\uff0c\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u6570\u636e\u7c7b\u578b\u548c\u64cd\u4f5c\uff0c\u4f7f\u5f97\u5f00\u53d1\u8005\u80fd\u591f\u5145\u5206\u53d1\u6325\u786c\u4ef6\u7684\u8ba1\u7b97\u80fd\u529b\uff0c\u4ece\u800c\u5728\u8d44\u6e90\u6709\u9650\u7684\u73af\u5883\u4e2d\u9ad8\u6548\u5b8c\u6210\u8ba1\u7b97\u4efb\u52a1\u3002\u5728\u8d28\u6570\u8ba1\u7b97\u8fd9\u4e00\u95ee\u9898\u4e0a\uff0c\u901a\u8fc7\u5408\u7406\u9009\u62e9\u53d8\u91cf\u7c7b\u578b\u3001\u4f18\u5316\u5faa\u73af\u6761\u4ef6\u548c\u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u51fd\u6570\u8c03\u7528\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u63d0\u5347\u7a0b\u5e8f\u7684\u6027\u80fd\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p><strong>1. \u5982\u4f55\u4f7f\u7528C\u8bed\u8a00\u7f16\u7a0b\u8ba1\u7b97100\u4ee5\u5185\u8d28\u6570\u7684\u548c\uff1f<\/strong><\/p>\n<p>\u7f16\u7a0b\u6c42\u89e3100\u4ee5\u5185\u8d28\u6570\u7684\u548c\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u5faa\u73af\u548c\u6761\u4ef6\u5224\u65ad\u6765\u5b9e\u73b0\u3002\u9996\u5148\uff0c\u8bbe\u7f6e\u4e00\u4e2a\u53d8\u91cf\u7528\u4e8e\u5b58\u50a8\u8d28\u6570\u7684\u548c\uff0c\u5e76\u521d\u59cb\u5316\u4e3a0\u3002\u7136\u540e\uff0c\u4f7f\u7528\u4e24\u4e2a\u5faa\u73af\u5d4c\u5957\uff0c\u5916\u5c42\u5faa\u73af\u4ece2\u5f00\u59cb\uff0c\u4e00\u76f4\u904d\u5386\u5230100\u3002\u5185\u5c42\u5faa\u73af\u7528\u4e8e\u5224\u65ad\u5f53\u524d\u6570\u5b57\u662f\u5426\u4e3a\u8d28\u6570\uff0c\u5982\u679c\u662f\u8d28\u6570\u5219\u5c06\u5176\u52a0\u5230\u603b\u548c\u4e2d\u3002\u5728\u5185\u5c42\u5faa\u73af\u4e2d\uff0c\u53ef\u4ee5\u7528\u4e00\u4e2a\u53d8\u91cf\u6765\u4fdd\u5b58\u5f53\u524d\u6570\u5b57\u7684\u56e0\u5b50\u4e2a\u6570\uff0c\u5982\u679c\u56e0\u5b50\u4e2a\u6570\u7b49\u4e8e2\uff0c\u5219\u8bf4\u660e\u5f53\u524d\u6570\u5b57\u662f\u8d28\u6570\u3002\u6700\u540e\uff0c\u8f93\u51fa\u8d28\u6570\u7684\u548c\u5373\u53ef\u3002\u4ee5\u4e0b\u662f\u4f2a\u4ee3\u7801\u793a\u4f8b\uff1a<\/p>\n<pre><code>int primeSum = 0;\nfor (int i = 2; i &lt;= 100; i++) {\n    int factors = 0;\n    for (int j = 1; j &lt;= i; j++) {\n        if (i % j == 0) {\n            factors++;\n        }\n    }\n    if (factors == 2) {\n        primeSum += i;\n    }\n}\nprintf(&quot;100\u4ee5\u5185\u8d28\u6570\u7684\u548c\u4e3a\uff1a%d\\n&quot;, primeSum);\n<\/code><\/pre>\n<p><strong>2. \u600e\u6837\u4f7f\u7528C\u8bed\u8a00\u7f16\u5199\u4e00\u4e2a\u51fd\u6570\u6765\u8ba1\u7b97100\u4ee5\u5185\u8d28\u6570\u7684\u548c\uff1f<\/strong><\/p>\n<p>\u4e3a\u4e86\u66f4\u597d\u7684\u91cd\u590d\u4f7f\u7528\u548c\u63d0\u9ad8\u4ee3\u7801\u53ef\u8bfb\u6027\uff0c\u53ef\u4ee5\u5c06\u8ba1\u7b97100\u4ee5\u5185\u8d28\u6570\u7684\u548c\u7684\u4ee3\u7801\u5c01\u88c5\u6210\u4e00\u4e2a\u51fd\u6570\u3002\u51fd\u6570\u7684\u8f93\u5165\u53c2\u6570\u53ef\u4ee5\u662f\u4e0a\u9650\u503c\uff0c\u5373\u8ba1\u7b97\u4ece2\u5230\u8be5\u4e0a\u9650\u503c\u4e4b\u95f4\u7684\u8d28\u6570\u7684\u548c\u3002\u4ee5\u4e0b\u662f\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre><code>int calculatePrimeSum(int limit) {\n    int primeSum = 0;\n    for (int i = 2; i &lt;= limit; i++) {\n        int factors = 0;\n        for (int j = 1; j &lt;= i; j++) {\n            if (i % j == 0) {\n                factors++;\n            }\n        }\n        if (factors == 2) {\n            primeSum += i;\n        }\n    }\n    return primeSum;\n}\n\nint main() {\n    int limit = 100;\n    int result = calculatePrimeSum(limit);\n    printf(&quot;%d\u4ee5\u5185\u8d28\u6570\u7684\u548c\u4e3a\uff1a%d\\n&quot;, limit, result);\n    return 0;\n}\n<\/code><\/pre>\n<p><strong>3. C\u8bed\u8a00\u4e2d\u5982\u4f55\u4f7f\u7528\u66f4\u9ad8\u6548\u7684\u7b97\u6cd5\u6765\u8ba1\u7b97100\u4ee5\u5185\u8d28\u6570\u7684\u548c\uff1f<\/strong><\/p>\n<p>\u4e0a\u8ff0\u7684\u65b9\u6cd5\u867d\u7136\u80fd\u591f\u6b63\u786e\u8ba1\u7b97100\u4ee5\u5185\u8d28\u6570\u7684\u548c\uff0c\u4f46\u662f\u6548\u7387\u5e76\u4e0d\u9ad8\uff0c\u7279\u522b\u662f\u5728\u5904\u7406\u8f83\u5927\u7684\u4e0a\u9650\u503c\u65f6\u3002\u53ef\u4ee5\u4f7f\u7528\u66f4\u9ad8\u6548\u7684\u7b97\u6cd5\u6765\u63d0\u9ad8\u8ba1\u7b97\u901f\u5ea6\uff0c\u5982\u57c3\u62c9\u6258\u65af\u7279\u5c3c\u7b5b\u6cd5\uff08Sieve of Eratosthenes\uff09\u3002\u8be5\u7b97\u6cd5\u901a\u8fc7\u6807\u8bb0\u5408\u6570\u7684\u65b9\u6cd5\uff0c\u4ece2\u5f00\u59cb\u904d\u5386\u5230\u4e0a\u9650\u503c\uff0c\u5e76\u5c06\u88ab\u5f53\u524d\u6570\u6574\u9664\u7684\u6570\u6807\u8bb0\u4e3a\u5408\u6570\u3002\u6700\u540e\uff0c\u672a\u88ab\u6807\u8bb0\u7684\u6570\u5373\u4e3a\u8d28\u6570\u3002\u4ee5\u4e0b\u662f\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre><code>int calculatePrimeSum(int limit) {\n    int primeSum = 0;\n    int isPrime[limit + 1];\n    memset(isPrime, 1, sizeof(isPrime)); \/\/ \u5c06\u6570\u7ec4\u521d\u59cb\u5316\u4e3a1\uff0c\u8868\u793a\u6240\u6709\u6570\u90fd\u662f\u8d28\u6570\n    \n    for (int i = 2; i &lt;= limit; i++) {\n        if (isPrime[i]) {\n            primeSum += i;\n            for (int j = i * i; j &lt;= limit; j += i) {\n                isPrime[j] = 0; \/\/ \u5c06\u5f53\u524d\u8d28\u6570\u7684\u500d\u6570\u6807\u8bb0\u4e3a\u5408\u6570\n            }\n        }\n    }\n    \n    return primeSum;\n}\n\nint main() {\n    int limit = 100;\n    int result = calculatePrimeSum(limit);\n    printf(&quot;%d\u4ee5\u5185\u8d28\u6570\u7684\u548c\u4e3a\uff1a%d\\n&quot;, limit, result);\n    return 0;\n}\n<\/code><\/pre>\n<p>\u4f7f\u7528\u8fd9\u79cd\u7b97\u6cd5\u8fdb\u884c\u8ba1\u7b97\uff0c\u53ef\u4ee5\u6709\u6548\u63d0\u9ad8\u6027\u80fd\uff0c\u5c24\u5176\u662f\u5728\u5904\u7406\u5927\u91cf\u6570\u636e\u65f6\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"C\u8bed\u8a00\u7f16\u7a0b\u8ba1\u7b97100\u4ee5\u5185\u8d28\u6570\u76f8\u52a0\u4e3b\u8981\u6d89\u53ca\u5230\u8d28\u6570\u7684\u5b9a\u4e49\u3001\u8d28\u6570\u7684\u5224\u5b9a\u65b9\u6cd5\u3001\u7d2f\u52a0\u7b97\u6cd5\u7684\u5b9e\u73b0\u3002\u5728C\u8bed\u8a00\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u7f16\u5199 [&hellip;]","protected":false},"author":3,"featured_media":302769,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/302734"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=302734"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/302734\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/302769"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=302734"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=302734"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=302734"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}