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//8.01 bool check(string s) { for (int i = 0; i < s.size(); i++) { if (s[i] >= 48 && s[i] <= 57) { return false; break; } } return true; } int main() { string s; getline(cin, s); check(s); if(check(s) == true) cout << s; else cout << "CHUOI KHONG HOP LE."; } //8.02 #include <iostream> #include <string.h> #include <cstring> using namespace std; #define MAX 300 int myStrlen(char s[]) { int a = 1; for (int i = 0; i < MAX; i++) { if (s[i] == '\n') s[i] = '\0'; if (s[i] == '\0') return a; a++; } } void deleteS(char s[], int x, int& n) { for (int i = x; i < n - 1; i++) { s[i] = s[i + 1]; } } void insert(char s[], int j, int& n, char x) { for (int i = n - 1; i >= j; i--) { s[i + 1] = s[i]; } s[j] = x; n++; } void Chuanhoa(char s[]) { int n = myStrlen(s); char temp[MAX]{}; int i = 0; int k = 0; while (i < n) { if (s[i] == ' ' && s[i + 1] == '.') { deleteS(s, i, n); continue; } if (s[i] == ' ' && s[i + 1] == ' ') { deleteS(s, i, n); continue; } if (s[i] == '.' && s[i + 1] == ' ' && s[i + 2] == ' ') { deleteS(s, i + 1, n); continue; } if (s[i] == '.' && s[i + 1] != ' ') { insert(s, i + 1, n, ' '); } i++; } } int main() { char s[MAX]; cin.getline(s, MAX); cout << s << endl; Chuanhoa(s); cout << s; return 0; } //8.03 #include <iostream> #include <cstring> using namespace std; char* ChuanHoa(char* s) { int i, j, n; n = strlen(s); while (s[0] == ' ') { memmove(s, s + 1, n); n = n - 1; } s[0] = toupper(s[0]); while (s[n - 1] == ' ') { s[n - 1] = 0; n = n - 1; } for (i = 0; i < n; i++) { j = i; while (s[j] == ' ') { if (s[j + 1] == ' ') { for (int k = j; k < n; k++) s[k] = s[k + 1]; n = n - 1; } else j++; } } s[n] = 0; for (i = 0; i < n; i++) { if (i == 0 || s[i - 1] == ' ') s[i] = toupper(s[i]); else s[i] = tolower(s[i]); } return s; } int main() { char hoten[100]; cin.getline(hoten, 100); char* a = ChuanHoa(hoten); cout << a; } //8.05 #include <iostream> #include <cstring> using namespace std; void count(char s[100][20], char size) { int count = 0, count2 = 0; for (int i = 0; i < size; i++) { for (int j = i; j < size; j++) { if (strcmp(s[i], s[j]) == 0) count++; } for (int k = 0; k < i; k++) { if (strcmp(s[i], s[k]) == 0) { count2 = 1; break; } } if (count2 == 0) cout << s[i] << ": " << count << endl; count = 0; count2 = 0; } } void Split(char s[]) { char temp[100][20]; int i = 0; char* p; for (p = strtok(s, " "); p != NULL; p = strtok(NULL, " ")) { strcpy(temp[i], p); i++; } count(temp, i); } int main() { char a[1000]; fflush(stdin); cin.getline(a, 999); if (strlen(a) == 0) cout << "Chuoi rong."; else Split(a); return 0; } //8.06 #include <iostream> #include <string> #include <string.h> using namespace std; void reverse(string s) { string s1; for (int i = 0; i < s.length(); i++) { if (s[i] != ' ') s1 = s[i] + s1; else { cout << s1 << " "; s1.clear(); } } cout << s1; } int main() { string s; getline(cin, s); if (s.length() == 0) cout << "Chuoi rong."; else reverse(s); return 0; } //8.07 #include <iostream> #include <cstring> using namespace std; void string_reverse(char str[]) { int i, j, len; char ch; j = len = strlen(str) - 1; i = 0; while (i < j) { ch = str[j]; str[j] = str[i]; str[i] = ch; i++; j--; } } int main() { char s1[1000]; cin.getline(s1, 999); char reverse[1000] = ""; char temp[50]; int i, j, n; n = strlen(s1); if (n == 0) cout << "Chuoi rong."; else { for (i = n - 1; i >= 0; --i) { for (j = 0; i >= 0 && s1[i] != ' '; --i, ++j) temp[j] = s1[i]; temp[j] = '\0'; string_reverse(temp); strcat(reverse, temp); strcat(reverse, " "); } cout << reverse; } return 0; } //8.08 #include <iostream> #include <string> using namespace std; int main() { string s, s1; getline(cin, s); getline(cin, s1); int k; cin >> k; if (k < 0 || k > s.size()) cout << "Vi tri " << k << " khong thoa dieu kien."; else { s.insert(k, s1); cout << s; } } //8.09 #include <iostream> #include <cstring> #include <string.h> using namespace std; int main() { char s1[255], s2[255]; cin.getline(s1, 255); cin.getline(s2, 255); int k = strcmp(s1, s2); if (k < 0) cout << "-1"; else if (k == 0) cout << "0"; else cout << "1"; return 0; } //8.10 #include <iostream> #include <string> #include <string.h> using namespace std; int main() { string s, s1, s2; getline(cin, s1); getline(cin, s2); if (s1.size() + s2.size() > 255) cout << "Khong noi duoc. Khong du bo nho."; else cout << s1 + s2; }
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