20160131.CCPP体系详解(0010天)
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程序片段(01):Test.c+NewTest.c
内容概要:题目测试
///Test.c#define _CRT_SECURE_NO_WARNINGS#include <stdio.h>#include <stdlib.h>#include <string.h>#define r char S; T R; I N, G, s#define A(P,O) for(P=O; *P; P=U(P))typedef char T[128], *I, p[2400];#define memset (I)\ memsetvoid*P = strcpy; I Q(); typedef const void*f; int u(f P, f O){ return strncmp((I)P, (I)O, 1);} T g, c = { 127 }; char l, F[6000000]; I U(I P){ r; strncpy(R, P, 2); s = strchr( strcpy(P, c), 0) ; strncpy(P, R, 2); return s;} T q, B, E; I t(I P){ r; qsort(P, strlen(P), 1, u); if (s = strstr(P, c))*s = 0; return P;} T a = { 2 }; void D(){ r; S = 1; strcpy(R, c); t(F); for (; memset(E, S, l), (S = strlen( strcat(R, c))) < *R; t(s))for (s = B; N = strstr(F, E); s = F) * memset(N, *c, l) = S;} p H = "(*&,.", k; I j(I P){ r = (I)malloc( strlen( strcat(P, "\177 "))); *strstr(P, c) = 0; return strcpy(s, P);} int K(f P, f O){ return u(O, P); } voidb(){ qsort(F, strlen(F), 1, K);} void n(I P){ r; A(P, P){ if (N = strchr(F, *P)); else{ t(F); b(); memset(B, l, *F); N = F; while (*strrchr(B, l) = 0, *P <= (S = strlen(B))){ *memset(E, S, l) = *c; strcat(F, E); } memset(B, 0, S); } *N = *c; } D();} void C(I P, I O){ r; A(P, P)A(s, O){ *strrchr( memset( strchr( memset( strncpy(k, B, 254), l, *P), 0), l, *s), l) = 0; *q = strlen(k) ; strcat(F, q); } D();} T i = "\13<\f="; void o(I P){ A(P, P){ *strrchr( memset(B, *c, *P), *c) = 0; memset(B, 0, *P = strlen(B)); }} int V(f P, f O){ return u(*(I*)P, *(I*)O); } void e(I O){ r; strcpy(H, O) ; strcpy(R, c); for (; 0 < strncmp(F, H, 1) ; strcat(R, c))A(s, H) memset(B, 0, *s = strlen( strcat( memset(B, *c, *s), c))); *k = 0; do{ while (0 <= strcmp(F, H)){ n(H); b(); *q = strlen(R) ; strcat(k, q); } *strrchr(R, *c) = *B; o(H); } while (*R);} char d(I P){ if (P = strstr(P, g)){ if ((*g = getchar()) < *i)' ' < *g ? o(g) : d(" "); } else P = B; return*P;} I m(I P){ qsort(P, strlen(P), 1, K); return*P == *c ? U(P) : P;} void J(I P){ r = m(P); if (P < s) putchar('-') ; memset(B, l, *s); do{ *E = *i; if (N = strchr(s, *q = strlen(B))) t(memset( memcpy(E, i, l), *c, strspn(N, q))) ; putchar(*E); *strrchr(B, *B = l) = 0; } while (*B); puts(B) ; free(P);} I M(){ r = Q(), P, O; while (S = d(".)$")){ N = Q(); G = strcpy(F, B); P = m(s); O = m(N); if (S == ')'){ C(P, O); } else{ strcpy(F, P); e(O); if (S == '.')G = k; else O = N; } free(s); G = j(G); s = strcat(G, P == s == (O == N) ? B : c) ; free(N); } return s;} I h(){ r, P, O; for (N = M(); S = d("*,"); N = strcat(s, S ? c : B)){ G = M(); P = m(N); O = m(G); S = O == G == (S == ','); if (P == N == S) if (strcmp(P, O) < 0) { strcpy(F, O); n(P); } else{ strcpy(F, P); n(O); S = N < P; } else{ strcat( strcpy(F, P), O); D(); } s = j(F); free(N) ; free(G); } return N;} I Q(){ r; if (S = d(",")) if (N = strstr(s = Q(), c))*N = *B; else strcat(s, c); else if (d("'")){ s = h(); S = d("("); } else{ strcpy(F, B); while (*q = d(i)) { strcpy(H, F) ; memset( strncpy(F, B, l), S = 1, strcspn(i, q)); C(H, a); } s = j(F); } if (!S){ o(strcpy(F, "tzouby!fssps")) ; puts(F); } return s;} int main1(int P, I*O){ qsort(O, P, sizeof*O, V); l = 1 < P ? strtol(*O, 0, l) : 10; C(H, i); strcpy(i, F); d(g); while (!d("\377"))for (J(h()); !d("\377\n"); d(g)); return 0;}
///NewTest.c#define _CRT_SECURE_NO_WARNINGS#include <stdio.h>#include <stdlib.h >void main123(){ /*int x, y; if (x < y)scanf("%d", &x); else scanf("%d", &y);*/ //int i; //while (!scanf("%d", &i)) //!1 // getchar(); //abcde<回车> ////ch = getchar() //'a' //char ch; // //a ,b ,c d, e //while ((ch = getchar()) == 'e') //e e e //{ // putchar(ch); // printf(" * "); //} //int x = 5, a = 0, b = 0; //if (x != (a + b)) printf("x=5\n"); //else printf("a=b=0\n"); //r ight ? //jhiu //char c; //c = getchar(); //while ((c = getchar()) != '?') // putchar(++c); //int a, b, c, d, x; //a = c = 0; ////b = 1; d = 20; ////if (a) //// d = d - 10; ////else if (!b) //else if (if else配对) //// if (!c)x = 15; //// else x = 25; // switch (a) // { // case 2: // break; // } // //int a = 10; //int b = 20; //switch (1+a+b) //{ //case 1: // break; //} //int n[2] = { 0 }, i, j, k = 2; //for (i = 0; i < k; i++) //for (j = 0; j < k; j++) n[j] = n[i] + 1; //printf("%d\n", n[k]);//n[2] //int i = 1, j = 1, k = 2; //j++ || ((k++) &&(i++));//短路效应 ////1 + 3 * 4; // //printf("%d,%d,%d\n", i, j, k); //int a=10; //int c = 0; //switch (a) //{ //case 2: // ; //} /*double sum = 0.0, x; for (x = 0.0; x < 3.0; x += 0.1) sum += x,printf("\n%f",x); printf("\n x=%f", x);*/ //int a = 1; //int b = 10; //do //{ // b -= a; //b=9,a=2 //b=6,a=3 //b=2,a=4 // b=-3 a=5 // a++; //} while (b-- < 10); //printf("a=%d,b=%d", a, b); //system("pause"); int i, j, k; for (i = 1; i <= 6; i++) { for (j = 1; j <= 20 - 2 * i; j++) printf(" "); for (k = 1; k <= i; k++) printf("%4d", i); printf("\n"); } system("pause");}void main124(){ char c; c = getchar(); //switch必须快语 switch (c) { case 0:case 1: printf("%d", c - '0'); break; default:putchar(c); }}void main125(){ int a, b; char op; scanf("%d%d", &a, &b); scanf("%c", &op); switch (op) { case '+': printf("%d + %d = %d\n", a, b, a + b); break; case '-': printf("%d - %d = %d\n", a, b, a - b); break; default:printf(""); exit(1); }}void main126(){ int n, i = 1; long sum = 0; printf("输入一个正整数:"); scanf("%d", &n); while (i < n) i += 2; sum += i; if (n % 2 == 0) n--; printf("输出1+3+5+…+%d=%1d\n", n, sum); system("pause");}void main1215(){ int s, t, a, b; scanf("%d,%d", &a, &b); //a=5//b=2 s = 1; t = 1; if (a > 0) //作用范围最近的;如果整体的ifelse会嵌套 { s = s + 1; /* ① */// s=2 if (a > b) { t = s + t; /* ② */ } else if (a == b) { t = 5; } else t = 2 * s; } printf("s=%d,t=%d\n", s, t); system("pause");}void main127(){ int a, b, m, n; scanf("%d%d,\n", &a, &b);//a=1,b=0 m = 1; n = 1; if (a > 0) { m = m + n; //1>0 m=2,n=1 if (a < b) n = 2 * m; else if (a == b) n = 5; else n = m + 1; } printf("m=%d n=%d\n", m, n); //1,2 system("pause");}void main128(){ int s, t, a, b; scanf("%d,%d", &a, &b);//a=5//b=2 s = 1; t = 1; //if作用范围只有一句大括号 if (a > 0) s = s + 1; /* ① */ if (a > b) t = s + t; /* ② */ else if (a == b) t = 5; else t = 2 * s; printf("s=%d,t=%d\n", s, t); system("pause");}void main234(){ int a, b, m, n; scanf("%d%d,\n", &a, &b);//a=1,b=0 m = 1; n = 1; if (a > 0) m = m + n; //1>0 m=2,n=1 //配对就近 if (a < b) n = 2 * m; else if (a == b) n = 5; else n = m + 1; printf("m=%d n=%d\n", m, n); //1,2}
程序片段(02):递归.c
内容概要:转化递归
#include <stdio.h>#include <stdlib.h>//01.编写程序,求a+aa+aaa+...(n个)aaa,其中a是一个数字.例如:3+33+333+3333+33333.// 1.分析问题步骤:// (1).复杂问题简单化// (2).复杂问题规律化// (3).复杂问题重复化// // 2.递归所能解决的问题:// 重复问题// 递推关系// 关系一:// 1--->3// 2--->33// 3--->333// n--->(n个)3-->((n-1)个)3*10+3int nAN(int num, int ele){ if (1 == num) return ele; return nAN(num - 1, ele) * 10 + ele;}// 关系二:// 1-->3// 2-->3+33// 3-->3+33+333// n-->n个整数,n个元素组成最大的数// Sn-->Sn-1+anint qNH(int num, int ele){ if (1 == num) return ele; return qNH(num - 1, ele) + nAN(num, ele);}int main(void){ //printf("%d \n", nAN(5, 3)); //printf("%d \n", qNH(4, 1)); system("pause");}//void digui3(int n, int a, int sum, int an)//{// if (n == 0)// {// printf("%d\n", sum);// return;// }// else// {// an = an * 10;// an += a;// sum += an;// digui3(n - 1, a, sum, an);// }//}
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