Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
97778 廖宸睿 寻找绝对素数 C++ Wrong Answer 1 MS 272 KB 615 2024-11-16 15:22:10

Tests(0/10):

Code:

#include <iostream> #include <cstdio> using namespace std; bool a(int e){ for(int i=2;i*i<=e;i++) if(e%i==0) return false; return true;} int b(int q){ int w=0; while(q!=0){ w=w*10+q%10; q=q/10; }} int main() { int n,r,t=0,z=0; cin>>r>>n; for(int i=r;i<=n/2;i++){ if(a(i)&&a(b(i))){ t++;z++; if(t==1) cout<<i; else cout<<','<<i; } } if(z==0) cout<<"No"; return 0; }

Run Info:

------Input------

1000 10999

------Answer-----

1009,1021,1031,1033,1061,1069,1091,1097,1103,1109,1151,1153,1181,1193,1201,1213,1217,1223,1229,1231,1237,1249,1259,1279,1283,1301,1321,1381,1399,1409,1429,1439,1453,1471,1487,1499,1511,1523,1559,1583,1597,1601,1619,1657,1669,1723,1733,1741,1753,1789,1811,1831,1847,1867,1879,1901,1913,1933,1949,1979,3011,3019,3023,3049,3067,3083,3089,3109,3121,3163,3169,3191,3203,3221,3251,3257,3271,3299,3301,3319,3343,3347,3359,3371,3373,3389,3391,3407,3433,3463,3467,3469,3511,3527,3541,3571,3583,3613,3643,3697,
------Your output-----

1009,1013,1019,1021,1031,1033,1039,1049,1051,1061,1063,1069,1087,1091,1093,1097,1103,1109,1117,1123,1129,1151,1153,1163,1171,1181,1187,1193,1201,1213,1217,1223,1229,1231,1237,1249,1259,1277,1279,1283,1289,1291,1297,1301,1303,1307,1319,1321,1327,1361,1367,1373,1381,1399,1409,1423,1427,1429,1433,1439,1447,1451,1453,1459,1471,1481,1483,1487,1489,1493,1499,1511,1523,1531,1543,1549,1553,1559,1567,1571,1579,1583,1597,1601,1607,1609,1613,1619,1621,1627,1637,1657,1663,1667,1669,1693,1697,1699,1709,1721,