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浜屻€佹祦绋嬪浘锛氱畻娉曠晫鐨勭伒榄傜敾鎵?/h3>

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• 馃數 鍦嗚鐭╁舰锛氬紑濮?缁撴潫
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寮€濮?鈫?杈撳叆鏁板瓧 鈫?鏁板瓧%2=0锛?鈫?鏄啋杈撳嚭鍋舵暟 鈫?缁撴潫
聽聽聽聽聽聽聽聽聽聽聽聽聽鈫撳惁
聽聽聽聽聽聽聽聽聽聽杈撳嚭濂囨暟

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1. 涓嶇敤绾犵粨鍒嗗彿銆佹嫭鍙凤紙瀵癸紝灏辨槸璇寸粰琚獵璇█鎶樼（鐨勪綘浠惉鐨勶級
2. 鑳界洿鎺ヨ浆鎹㈡垚浠绘剰缂栫▼璇█

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sum = 0
for i浠?鍒?00:
聽聽聽聽sum += i
杈撳嚭sum

瀵规瘮C璇█鐗堟湰锛?/p>

c澶嶅埗
int sum = 0;
for(int i=1; i<=100; i++){
聽聽聽聽sum += i;
}
printf("%d",sum);

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1. 鈥?strong>鈥嬩吉浠ｇ爜鎵撳簳鈥?/strong>鈥嬶細

杈撳叆鏁板瓧n
濡傛灉n<=1: 涓嶆槸绱犳暟
for i浠?鍒扳垰n:
聽聽聽聽濡傛灉n%i=0: 涓嶆槸绱犳暟
鏄礌鏁?/code>

c澶嶅埗
#include 
int is_prime(int n){
聽聽聽聽if(n <= 1) return 0;
聽聽聽聽for(int i=2; i<=sqrt(n); i++){
聽聽聽聽聽聽聽聽if(n%i == 0) return 0;
聽聽聽聽}
聽聽聽聽return 1;
}