1.       cpp #include <iostream.h> int main() {        int n,i;        long s,a[4];        while(cin>>n)        {               if(n==0) return 0;               cin>>a[0];               s=a[0];               for(i=1;i<n;i++)               {                      cin>>a[i];                      if(s<a[i])                             s=a[i];               }               cout<<s<<endl;        } }     a.       cpp #include <iostream.h> #include <string.h> int  fun(char *a,char *b) {        int i;        if(strlen(a)>strlen(b))               return 1;        else if(strlen(a)<strlen(b))               return 0;        else        {               for(i=0;i<strlen(a);i++)               {                      if(a[i]>b[i])                             return 1;                      else if(a[i]<b[i])                             return 0;               }        } }       int main() {        int n,i;        char a[100][100],b[100];        while(cin>>n)        {               if(n==0) return 0;               for(i=0;i<n;i++)                      cin>>a[i];               strcpy(b,a[0]);               for(i=1;i<n;i++)               {                      if(fun(a[i],b))                             strcpy(b,a[i]);               }               cout<<b<<endl;        } }   b.       cpp #include <iostream.h> int c[10][10]; int m,n; int sum=10000;   int fun(int a,int b,int k) {   if(a==n && b==m) {        k+=c[a-1][b-1];        if(k>0 && k<sum)        {               //cout<<sum<<endl;               sum=k;        }        return 0; }   if(a==n && b!=m) {        k=k+c[a-1][b-1];        fun(a,b+1,k); } else if(a!=n && b==m) {        k=k+c[a-1][b-1];        fun(a+1,b,k); } else {        k=k+c[a-1][b-1];        fun(a+1,b,k);        fun(a,b+1,k); } }       int main() { int i,j; while(cin>>n>>m) {        sum=10000; for(i=0;i<n;i++) for(j=0;j<m;j++) cin>>c[i][j]; fun(1,1,0); if(sum==0 || sum==10000) cout<<"-1\n"; else cout<<sum<<endl; } }   c.       cpp #include <iostream.h> #include <string.h> int main() {        char a[101],b[101];        long n,j;        int i,k,flag;        while(cin>>n)        {               for(i=0;i<101;i++)               {                      a[i]='0';               }               for(j=0;j<n;j++)               {                      strcpy(b,"0");                      cin>>b;                      flag=0;                      for(i=0;i<strlen(b);i++)                      {                             k=a[100-i]-'0'+b[strlen(b)-i-1]-'0';                             if(k>9)                             {                                    a[99-i]+=1;                                    a[100-i]=k-10+'0';                             }                             else                             {                                    a[100-i]=k+'0';                             }                      }                 }               flag=0;               for(i=0;i<101;i++)               {                      if(flag==0 && a[i]!='0')                             flag=1;                      if(flag==1)                             cout<<a[i];               }               if(flag==0)                      cout<<"0";               cout<<endl;        } }     d.       cpp #include <iostream.h> int a[1230]={2,3,5,7,11,13,17,19,23, 29,31,37,41,43,47,53,59,61,67, 71,73,79,83,89,97,101,103,107,109, 113,127,131,137,139,149,151,157,163,167, 173,179,181,191,193,197,199,211,223,227, 229,233,239,241,251,257,263,269,271,277, 281,283,293,307,311,313,317,331,337,347, 349,353,359,367,373,379,383,389,397,401, 409,419,421,431,433,439,443,449,457,461, 463,467,479,487,491,499,503,509,521,523, 541,547,557,563,569,571,577,587,593,599, 601,607,613,617,619,631,641,643,647,653, 659,661,673,677,683,691,701,709,719,727, 733,739,743,751,757,761,769,773,787,797, 809,811,821,823,827,829,839,853,857,859, 863,877,881,883,887,907,911,919,929,937, 941,947,953,967,971,977,983,991,997,1009, 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, 1657,1663,1667,1669,1693,1697,1699,1709,1721,1723, 1733,1741,1747,1753,1759,1777,1783,1787,1789,1801, 1811,1823,1831,1847,1861,1867,1871,1873,1877,1879, 1889,1901,1907,1913,1931,1933,1949,1951,1973,1979, 1987,1993,1997,1999,2003,2011,2017,2027,2029,2039, 2053,2063,2069,2081,2083,2087,2089,2099,2111,2113, 2129,2131,2137,2141,2143,2153,2161,2179,2203,2207, 2213,2221,2237,2239,2243,2251,2267,2269,2273,2281, 2287,2293,2297,2309,2311,2333,2339,2341,2347,2351, 2357,2371,2377,2381,2383,2389,2393,2399,2411,2417, 2423,2437,2441,2447,2459,2467,2473,2477,2503,2521, 2531,2539,2543,2549,2551,2557,2579,2591,2593,2609, 2617,2621,2633,2647,2657,2659,2663,2671,2677,2683, 2687,2689,2693,2699,2707,2711,2713,2719,2729,2731, 2741,2749,2753,2767,2777,2789,2791,2797,2801,2803, 2819,2833,2837,2843,2851,2857,2861,2879,2887,2897, 2903,2909,2917,2927,2939,2953,2957,2963,2969,2971, 2999,3001,3011,3019,3023,3037,3041,3049,3061,3067, 3079,3083,3089,3109,3119,3121,3137,3163,3167,3169, 3181,3187,3191,3203,3209,3217,3221,3229,3251,3253, 3257,3259,3271,3299,3301,3307,3313,3319,3323,3329, 3331,3343,3347,3359,3361,3371,3373,3389,3391,3407, 3413,3433,3449,3457,3461,3463,3467,3469,3491,3499, 3511,3517,3527,3529,3533,3539,3541,3547,3557,3559, 3571,3581,3583,3593,3607,3613,3617,3623,3631,3637, 3643,3659,3671,3673,3677,3691,3697,3701,3709,3719, 3727,3733,3739,3761,3767,3769,3779,3793,3797,3803, 3821,3823,3833,3847,3851,3853,3863,3877,3881,3889, 3907,3911,3917,3919,3923,3929,3931,3943,3947,3967, 3989,4001,4003,4007,4013,4019,4021,4027,4049,4051, 4057,4073,4079,4091,4093,4099,4111,4127,4129,4133, 4139,4153,4157,4159,4177,4201,4211,4217,4219,4229, 4231,4241,4243,4253,4259,4261,4271,4273,4283,4289, 4297,4327,4337,4339,4349,4357,4363,4373,4391,4397, 4409,4421,4423,4441,4447,4451,4457,4463,4481,4483, 4493,4507,4513,4517,4519,4523,4547,4549,4561,4567, 4583,4591,4597,4603,4621,4637,4639,4643,4649,4651, 4657,4663,4673,4679,4691,4703,4721,4723,4729,4733, 4751,4759,4783,4787,4789,4793,4799,4801,4813,4817, 4831,4861,4871,4877,4889,4903,4909,4919,4931,4933, 4937,4943,4951,4957,4967,4969,4973,4987,4993,4999, 5003,5009,5011,5021,5023,5039,5051,5059,5077,5081, 5087,5099,5101,5107,5113,5119,5147,5153,5167,5171, 5179,5189,5197,5209,5227,5231,5233,5237,5261,5273, 5279,5281,5297,5303,5309,5323,5333,5347,5351,5381, 5387,5393,5399,5407,5413,5417,5419,5431,5437,5441, 5443,5449,5471,5477,5479,5483,5501,5503,5507,5519, 5521,5527,5531,5557,5563,5569,5573,5581,5591,5623, 5639,5641,5647,5651,5653,5657,5659,5669,5683,5689, 5693,5701,5711,5717,5737,5741,5743,5749,5779,5783, 5791,5801,5807,5813,5821,5827,5839,5843,5849,5851, 5857,5861,5867,5869,5879,5881,5897,5903,5923,5927, 5939,5953,5981,5987,6007,6011,6029,6037,6043,6047, 6053,6067,6073,6079,6089,6091,6101,6113,6121,6131, 6133,6143,6151,6163,6173,6197,6199,6203,6211,6217, 6221,6229,6247,6257,6263,6269,6271,6277,6287,6299, 6301,6311,6317,6323,6329,6337,6343,6353,6359,6361, 6367,6373,6379,6389,6397,6421,6427,6449,6451,6469, 6473,6481,6491,6521,6529,6547,6551,6553,6563,6569, 6571,6577,6581,6599,6607,6619,6637,6653,6659,6661, 6673,6679,6689,6691,6701,6703,6709,6719,6733,6737, 6761,6763,6779,6781,6791,6793,6803,6823,6827,6829, 6833,6841,6857,6863,6869,6871,6883,6899,6907,6911, 6917,6947,6949,6959,6961,6967,6971,6977,6983,6991, 6997,7001,7013,7019,7027,7039,7043,7057,7069,7079, 7103,7109,7121,7127,7129,7151,7159,7177,7187,7193, 7207,7211,7213,7219,7229,7237,7243,7247,7253,7283, 7297,7307,7309,7321,7331,7333,7349,7351,7369,7393, 7411,7417,7433,7451,7457,7459,7477,7481,7487,7489, 7499,7507,7517,7523,7529,7537,7541,7547,7549,7559, 7561,7573,7577,7583,7589,7591,7603,7607,7621,7639, 7643,7649,7669,7673,7681,7687,7691,7699,7703,7717, 7723,7727,7741,7753,7757,7759,7789,7793,7817,7823, 7829,7841,7853,7867,7873,7877,7879,7883,7901,7907, 7919,7927,7933,7937,7949,7951,7963,7993,8009,8011, 8017,8039,8053,8059,8069,8081,8087,8089,8093,8101, 8111,8117,8123,8147,8161,8167,8171,8179,8191,8209, 8219,8221,8231,8233,8237,8243,8263,8269,8273,8287, 8291,8293,8297,8311,8317,8329,8353,8363,8369,8377, 8387,8389,8419,8423,8429,8431,8443,8447,8461,8467, 8501,8513,8521,8527,8537,8539,8543,8563,8573,8581, 8597,8599,8609,8623,8627,8629,8641,8647,8663,8669, 8677,8681,8689,8693,8699,8707,8713,8719,8731,8737, 8741,8747,8753,8761,8779,8783,8803,8807,8819,8821, 8831,8837,8839,8849,8861,8863,8867,8887,8893,8923, 8929,8933,8941,8951,8963,8969,8971,8999,9001,9007, 9011,9013,9029,9041,9043,9049,9059,9067,9091,9103, 9109,9127,9133,9137,9151,9157,9161,9173,9181,9187, 9199,9203,9209,9221,9227,9239,9241,9257,9277,9281, 9283,9293,9311,9319,9323,9337,9341,9343,9349,9371, 9377,9391,9397,9403,9413,9419,9421,9431,9433,9437, 9439,9461,9463,9467,9473,9479,9491,9497,9511,9521, 9533,9539,9547,9551,9587,9601,9613,9619,9623,9629, 9631,9643,9649,9661,9677,9679,9689,9697,9719,9721, 9733,9739,9743,9749,9767,9769,9781,9787,9791,9803, 9811,9817,9829,9833,9839,9851,9857,9859,9871,9883, 9887,9901,9907,9923,9929,9931,9941,9949,9967,9973};   int fun(int m,int n) {        int sum=0;        int i;        for(i=0;i<n;i++)               sum+=a[i+m];        return sum; }   int main() {        int n,s,i,j,sum;        while(cin>>n)        {               s=0;               if(n==0)                      return 0;               for(i=0;a[i]<=n;i++)               {                      j=0;                      while(1)                      {                             if(fun(i,j)==n)                             {                                    s++;                                    //cout<<a[i]<<" ";                                    break;                             }                             if(fun(i,j)>n)                             {                                    //cout<<"laal"<<a[i]<<" "<<j;                                    break;                             }                             j++;                      }                      /*j=i;                      while(1)                      {                             sum+=a[j];                             if(sum==n)                             {                                    s++;                                    break;                             }                             if(sum>n)                                    break;                             j++;                      }*/               }               cout<<s<<endl;        } }   e.       cpp #include <iostream.h> int main() {        int i,j,n,m;        int flag,sum,sum2;        cin>>n;        for(j=0;j<n;j++)        {               flag=0,sum=0,sum2=0;               for(i=0;i<12;i++)               {                      cin>>m;                      if(flag==0 && sum+300<m)                      {                             flag=i+1;                      }                      sum+=300-m;                      while(sum>100)                      {                             sum2+=100;                             sum-=100;                      }               }               if(flag!=0)                      cout<<"-"<<flag<<endl;               else                      cout<<(int)(sum2*1.2)+sum<<endl;        } }   f.        cpp #include <iostream.h> #include <stdlib.h> int comp(const void* a,const void *b) {     long *x=(long*)a;     long *y=(long*)b;     return *x-*y;  //如果a>b返回正数,如果a<b,返回负数,相等返回0; }       int main() {        int t,i,j,n;        long a[1000];        cin>>t;        for(j=0;j<t;j++)        {               cin>>n;               for(i=0;i<n;i++)                      cin>>a[i];               qsort(a,n,sizeof(long),comp); //从大到小排序               for(i=0;i<n;i++)                      cout<<a[i]<<endl;        } }   g.       cpp #include <iostream.h> int fun(int h,int m,int s) {        if(h>=12)               h-=12;        int sum=0;        float h1,m1;        m1=m+(float)s/60.0;        h1=(float)m1/60.0+h;        if(h1*6-m1<=0.000001)        {               sum=(int)(m1*6)-(int)(h1*30);        }        else        {               sum=360+(int)(m1*6)-(int)(h1*30);        }        if(sum==360)               sum=0;        return sum; } int main() {        char a1[10];        int h,s,m,A;        //cout<<fun(13,59,51)<<endl;        //cout<<fun(14,0,0)<<endl;        while(1)        {        cin>>A;        cin>>a1;        if(A==-1) return 0;        h=(a1[0]-'0')*10+a1[1]-'0';        m=(a1[3]-'0')*10+a1[4]-'0';        s=(a1[6]-'0')*10+a1[7]-'0';        //cout<<h<<m<<s<<endl;        //cout<<fun(h,m,s)<<endl;        while(1)        {               if(fun(h,m,s)==A)                      break;               s++;               if(s>=60)               {                      s=0;                      m++;               }               if(m>=60)               {                      m=0;                      h++;               }               if(h>=24)                      h=0;        }        //cout<<h<<m<<s<<endl;        if(h<10)               cout<<"0";        cout<<h;        cout<<":";        if(m<10)               cout<<"0";        cout<<m;        cout<<":";        if(s<10)               cout<<"0";        cout<<s<<endl;                 /*for(i=0;i<60;i++)                      if(fun(h1,i,0)>A)                             break;               for(j=0;j<60;j++)                      if(fun(h1,i-1,j)==A)                             break;                      cout<<h1<<":"<<i<<":"<<j<<endl;                      */        } }

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