Дамп всех задач

C++/строки/1.cpp

@@ -0,0 +1,23 @@
+#include <iostream>
+#include <cstring>
+#include <cctype>
+#include <cstdio>
+
+using namespace std;
+
+int main() {
+    char s[80];
+    cout <<"Ââåäèòå:\n>";
+    gets (s);
+    int i=0;
+    while (s[i]!='\0') {
+        if (s[i]=='a') s[i]='b';
+        else if (s[i]=='b') s[i]='a';
+        if (s[i]=='A') s[i]='B';
+        else if (s[i]=='B') s[i]='A';
+        i++;
+    }
+    cout <<"Ðåçóëüòàò: "<<s<<endl;
+    system ("pause");
+    return 0;
+}

C++/строки/2.cpp

@@ -0,0 +1,21 @@
+#include <iostream>
+#include <cstring>
+#include <cctype>
+#include <cstdio>
+
+using namespace std;
+
+int main() {
+    char s[80];
+    cout <<"Ââåäèòå:\n>";
+    gets (s);
+    int i=0;
+    while (s[i]!='\0') {
+        if (s[i]>='a' && s[i]<='z') s[i]=toupper(s[i]);
+        else if (s[i]>='A' && s[i]<='Z') s[i]=tolower(s[i]);
+        i++;
+    }
+    cout <<"Ðåçóëüòàò: "<<s<<endl;
+    system ("pause");
+    return 0;
+}

C++/строки/Str.cpp

@@ -0,0 +1,25 @@
+#include <iostream>
+#include <graphics.h>
+#include <conio.h>
+#include <fstream>
+#include <cstring>
+#include <cctype>
+#include <cstdio>
+
+using namespace std;
+
+int main() {
+    ifstream f; f.open("Strin.txt");
+    ofstream d; d.open("Strout.txt");
+    char s1[80]; int j, N;
+    f>>N;
+    for (j=0; j<=N; j++) {
+    f.getline(s1, sizeof(s1));
+    cout <<"Str "<<j<<" - "<<strlen(s1)<<" symbols\n";
+    d <<"Str "<<j<<" - "<<strlen(s1)<<" symbols\n";
+    }
+    d<<'\0';
+    f.close(); d.close();
+    system ("pause");
+    return 0;
+}

C++/строки/Strin.txt

@@ -0,0 +1,4 @@
+3Good times at your side.
+SamplE ÷rd.
+Sample file.
+Sample world.

C++/строки/TEXT.txt

@@ -0,0 +1,3 @@
+2лол
+кек
+палиндром

C++/строки/cnb[.cpp

@@ -0,0 +1,29 @@
+#include <iostream>
+#include <cstring>
+#include <cstdio>
+#include <cctype>
+
+using namespace std;
+
+int main() {
+    char parol[7]="qwerty", p[20];
+    cout <<"Ââåäèòå ïàðîëü:\n>";
+    gets (p);
+    if(strcmp(parol,p)!=0){
+          cout <<"Íåâåðíûé ïàðîëü\n";
+          system ("pause");
+          return 0;
+    }
+    cout <<"Äîñòóï ðàçðåø¸í!\n";
+    char s[70];
+    cout <<"Âåäèòå ôðàçó:\n>";
+    gets (s);
+    int n=strlen(s);
+    for (int i=0; i<n-1; i++) {
+        putchar(s[i]);
+        if (s[i]==' ') putchar('\n');
+    }
+    putchar('\n');
+    system ("pause");
+    return 0;
+}

C++/строки/ege.cpp

@@ -0,0 +1,30 @@
+#include <iostream>
+#include <cstring>
+#include <cstdio>
+#include <cctype>
+
+using namespace std;
+
+int main() {
+    char s[80], j;
+    int c[28], i;
+    for (i='A'; i<='Z'; i++) {
+        c[i]=0;
+    }
+    cout <<"Ââåäèòå ñòðîêó çàêàí÷èâàþùóþñÿ íà òî÷êó:\n>";
+    gets (s);
+    i=0;
+    while (s[i]!='.') {
+          if ('a'<=s[i] && s[i]<='z') s[i]=toupper(s[i]);
+          c[s[i]]=c[s[i]]+1;
+          i++;
+    }
+    for (i='A'; i<='Z'; i++) {
+        if (c[i]>0) {
+                    j=i+32;
+                    cout <<j<<"-"<<c[i]<<endl;
+        }
+    }
+    system ("pause");
+    return 0;
+}

C++/строки/pass.cpp

@@ -0,0 +1,28 @@
+#include <iostream>
+#include <cstring>
+#include <cstdio>
+#include <cctype>
+
+using namespace std;
+
+int main() {
+    char parol[7]="qwerty", p[20];
+    cout <<"Ââåäèòå ïàðîëü:\n>";
+    gets (p);
+    if(strcmp(parol,p)!=0){
+          cout <<"Íåâåðíûé ïàðîëü\n";
+          system ("pause");
+          return 0;
+    }
+    cout <<"Äîñòóï ðàçðåø¸í!\n";
+    char s[70];
+    cout <<"Âåäèòå ôðàçó:\n>";
+    gets (s);
+    int n=strlen(s), k=0;
+    for (int i=0; i<n-1; i++) {
+        if (s[i]==' '&&s[i+1]!=' ') k++;
+    }
+    cout<<"Êîë-âî ñëîâ: "<<k+1<<endl;
+    system ("pause");
+    return 0;
+}

C++/строки/polindrom.cpp

@@ -0,0 +1,40 @@
+#include <iostream>
+#include <graphics.h>
+#include <conio.h>
+#include <fstream>
+#include <cstring>
+#include <cctype>
+#include <cstdio>
+
+using namespace std;
+
+int main() {
+    ifstream f; f.open("TEXT.txt");
+    ofstream d; d.open("NEWTEXT.txt");
+    char s1[80], s2[80]; int i, j, N, len, k=0;
+    f>>N;
+    for (j=0; j<=N; j++) {
+    k=0;
+    f.getline(s1, sizeof(s1));
+    cout <<s1<<" - ";
+    d<<s1<<" - ";
+    //main code here:
+    len=strlen(s1);
+    for (i=len-1; i>=0; i--) {
+        s2[k]=s1[i]; k++;
+    }
+    s2[k]='\0';
+    if (strcmp(s2,s1)==0) {
+         cout<<"Ïàëèíäðîì!"<<endl;
+         d<<"Palindrom!"<<endl;
+    } else {
+        cout<<"Íå ïàëèíäðîì!"<<endl;
+        d<<"Ne palindrom!"<<endl;
+    }
+    //end of main code
+    }
+    d<<'\0';
+    f.close(); d.close();
+    system ("pause");
+    return 0;
+}