0-9 AC

2000.cpp

@@ -0,0 +1,17 @@
+#include <iostream>
+using namespace std;
+void c(char &a,char &b){
+    char t = a;
+    a = b;
+    b = t;
+}
+int main(){
+    char a[4];
+    while(cin >> a){
+        if(a[0]>a[1])c(a[0],a[1]);
+        if(a[1]>a[2])c(a[1],a[2]);
+        if(a[0]>a[1])c(a[0],a[1]);
+        cout << a[0] << " " << a[1] << " " << a[2] << endl;
+    }
+    return 0;
+}

2001.cpp

@@ -0,0 +1,12 @@
+#include <iostream>
+#include <iomanip>
+#include <cmath>
+using namespace std;
+int main(){
+    double a1,a2,b1,b2,o;
+    while(cin>>a1>>a2>>b1>>b2){
+        o = sqrt(pow(a1-b1,2)+pow(a2-b2,2));
+        cout << setiosflags(ios::fixed) << setprecision(2) << o << endl;
+    }
+    return 0;
+}

2002.cpp

@@ -0,0 +1,13 @@
+#include <iostream>
+#include <iomanip>
+#define PI 3.1415927
+#include <cmath>
+using namespace std;
+int main(){
+    double a,o;
+    while(cin>>a){
+        o = 4.0 / 3.0 * PI * pow(a,3);
+        cout << setiosflags(ios::fixed) << setprecision(3) << o << endl;
+    }
+    return 0;
+}

2003.cpp

@@ -0,0 +1,11 @@
+#include <iostream>
+#include <iomanip>
+using namespace std;
+int main(){
+    double a;
+    while(cin>>a){
+        a = a>0?a:-a;
+        cout << setiosflags(ios::fixed) << setprecision(2) << a << endl;
+    }
+    return 0;
+}

2004.cpp

@@ -0,0 +1,21 @@
+#include <iostream>
+#include <iomanip>
+using namespace std;
+int main(){
+    int a;
+    while(cin>>a){
+        if(a>100 || a<0)
+            cout << "Score is error!" << endl;
+        else if (a > 89)
+            cout <<  "A"<<endl;
+        else if (a > 79)
+            cout << "B" << endl;
+        else if (a > 69)
+            cout << "C" << endl;
+        else if (a > 59)
+            cout << "D" << endl;
+        else
+            cout << "E" << endl;
+    }
+    return 0;
+}

2005.cpp

@@ -0,0 +1,35 @@
+#include <iostream>
+#include <iomanip>
+#define IS_LEAP_YEAR(y) (((y) % 4 == 0 && (y) % 100 != 0) || (y) % 400 == 0)
+#define TO_INT(x) ((int)(x)-48)
+using namespace std;
+int main(){
+    char a[10];
+    int y,m,d,o;
+    while(cin>>a){
+        y = TO_INT(a[0])*1000+TO_INT(a[1])*100+TO_INT(a[2])*10+TO_INT(a[3]);
+        if(a[6] == '/'){
+            m = TO_INT(a[5]);
+            d = a[8] == '\0'?TO_INT(a[7]):(TO_INT(a[7])*10+TO_INT(a[8]));
+        } else{
+            m = TO_INT(a[5])*10+TO_INT(a[6]);
+            d = a[9] == '\0'?TO_INT(a[8]):(TO_INT(a[8])*10+TO_INT(a[9]));
+        }
+        switch (m){
+            case 12:d += 30;
+            case 11:d += 31;
+            case 10:d += 30;
+            case 9:d += 31;
+            case 8:d += 31;
+            case 7:d += 30;
+            case 6:d += 31;
+            case 5:d += 30;
+            case 4:d += 31;
+            case 3:d += IS_LEAP_YEAR(y)?29:28;
+            case 2:d += 31;
+            default:break;
+        }
+        cout << d << endl;
+    }
+    return 0;
+}

2006.cpp

@@ -0,0 +1,14 @@
+#include <iostream>
+using namespace std;
+int main(){
+    int a,b,o;
+    while(cin>>a){
+        o = 1;
+        for(int i = 0;i<a;i++){
+            cin >> b;
+            o *= b%2==0?1:b;
+        }
+        cout << o <<endl;
+    }
+    return 0;
+}

2007.cpp

@@ -0,0 +1,19 @@
+#include <iostream>
+#include <cmath>
+#define lint long long
+using namespace std;
+int main(){
+    lint a,b,o1,o2;
+    while(cin>>a>>b){
+        o1 = 0,o2 = 0;
+        if(a>b)a^=b^=a^=b;
+        for(;a<=b;a++){
+            if(a%2 == 0)
+                o1 += pow(a,2);
+            else
+                o2 += pow(a,3);
+        }
+        cout << o1 << ' ' << o2 << endl;
+    }
+    return 0;
+}

2008.cpp

@@ -0,0 +1,20 @@
+#include <iostream>
+using namespace std;
+int main(){
+    int a,b,c,n;
+    double t;
+    while(cin>>n && n>0){
+        a = b = c = 0;
+        for(int i=0;i<n;i++){
+            cin >> t;
+            if(t<0)
+                a++;
+            else if (t>0)
+                c++;
+            else
+                b++;
+        }
+        cout << a << ' ' << b << ' ' << c << endl;
+    }
+    return 0;
+}

2009.cpp

@@ -0,0 +1,14 @@
+#include <iostream>
+#include <iomanip>
+#include <cmath>
+using namespace std;
+int main(){
+    double a,n,o;
+    while(cin>>a>>n){
+        o = a;
+        for(int i =0;i<n-1;i++)
+            o += a=sqrt(a);
+        cout << setiosflags(ios::fixed) << setprecision(2) << o << endl;
+    }
+    return 0;
+}