#include <iostream>
#include <string>
#include <cstdio>
#include <ctime>
#include <cstdlib>
#include <iomanip>
#include <cctype>
using namespace std;

const int N=10000000,NC=10*N;
int a[N],swtime,swsize;
char s[NC];
char sw[16*N];

void gen() {
    for (int i=0;i<N;i++) {
        a[i]=rand();
    }
    for (int i=0;i<NC;i++) {
        s[i]=rand()%10+'0';
    }
    int cur=clock();
    swsize=0;
    for (int i=0;i<N;i++) {
        char s[100];
        sprintf(s,"%d",a[i]);
        for (int j=0;s[j];j++) {
            sw[swsize++]=s[j];
        }
        sw[swsize++]=' ';
    }
    swtime=clock()-cur;
}

void test_printf_int() {
    int cur=clock();
    freopen("temp.txt","w",stdout);
    for (int i=0;i<N;i++)
        printf("%d ",a[i]);
    fclose(stdout);
    fprintf(stderr,"Test: (printf, %d ints) %.2lfc\n",N,(clock()-cur+.0)/CLOCKS_PER_SEC);
}

void test_cout_int() {
    int cur=clock();
    freopen("temp.txt","w",stdout);
    for (int i=0;i<N;i++)
        cout << a[i] << ' ';
    fclose(stdout);
    fprintf(stderr,"Test: (cout, %d ints) %.2lfc\n",N,(clock()-cur+.0)/CLOCKS_PER_SEC);
}

void test_write_int() {
    int cur=clock();
    freopen("temp.txt","w",stdout);
    cout.write(sw,swsize);
    fclose(stdout);
    fprintf(stderr,"Test: (write, %d ints, %d chars) %.2lfc + %.2lfc\n",N,swsize,(swtime+.0)/CLOCKS_PER_SEC,(clock()-cur+.0)/CLOCKS_PER_SEC);
}

void test_fwrite_int() {
    int cur=clock();
    freopen("temp.txt","w",stdout);
    fwrite(sw,1,swsize,stdout);
    fclose(stdout);
    fprintf(stderr,"Test: (fwrite, %d ints, %d chars) %.2lfc + %.2lfc\n",N,swsize,(swtime+.0)/CLOCKS_PER_SEC,(clock()-cur+.0)/CLOCKS_PER_SEC);
}

void test_scanf_int() {
    int cur=clock();
    freopen("temp.txt","r",stdin);
    for (int i=0;i<N;i++) {
        int t;
        scanf("%d",&t);
        if (t!=a[i]) {
            fprintf(stderr,"Fail with scanf\n");
            exit(1);
        }
    }
    fclose(stdin);
    fprintf(stderr,"Test: (scanf, %d ints) %.2lfc\n",N,(clock()-cur+.0)/CLOCKS_PER_SEC);
}

void test_cin_int() {
    int cur=clock();
    freopen("temp.txt","r",stdin);
    for (int i=0;i<N;i++) {
        int t;
        cin >> t;
        if (t!=a[i]) {
            fprintf(stderr,"Fail with cin\n");
            exit(1);
        }
    }
    fclose(stdin);
    fprintf(stderr,"Test: (cin, %d ints) %.2lfc\n",N,(clock()-cur+.0)/CLOCKS_PER_SEC);
}

void test_printf_char() {
    int cur=clock();
    freopen("temp.txt","w",stdout);
    for (int i=0;i<NC;i++)
        printf("%c",s[i]);
    fclose(stdout);
    fprintf(stderr,"Test: (printf, %d chars) %.2lfc\n",NC,(clock()-cur+.0)/CLOCKS_PER_SEC);
}

void test_cout_char() {
    int cur=clock();
    freopen("temp.txt","w",stdout);
    for (int i=0;i<NC;i++)
        cout << s[i];
    fclose(stdout);
    fprintf(stderr,"Test: (cout, %d chars) %.2lfc\n",NC,(clock()-cur+.0)/CLOCKS_PER_SEC);
}

void test_putchar_char() {
    int cur=clock();
    freopen("temp.txt","w",stdout);
    for (int i=0;i<NC;i++)
        putchar(s[i]);
    fclose(stdout);
    fprintf(stderr,"Test: (putchar, %d chars) %.2lfc\n",NC,(clock()-cur+.0)/CLOCKS_PER_SEC);
}

void test_scanf_char() {
    int cur=clock();
    freopen("temp.txt","r",stdin);
    for (int i=0;i<NC;i++) {
        char t;
        scanf("%c",&t);
        if (t!=s[i]) {
            fprintf(stderr,"Fail with scanf\n");
            exit(1);
        }
    }
    fclose(stdin);
    fprintf(stderr,"Test: (scanf, %d chars) %.2lfc\n",NC,(clock()-cur+.0)/CLOCKS_PER_SEC);
}

void test_cin_char() {
    int cur=clock();
    freopen("temp.txt","r",stdin);
    for (int i=0;i<NC;i++) {
        char t;
        cin >> t;
        if (t!=s[i]) {
            fprintf(stderr,"Fail with cin\n");
            exit(1);
        }
    }
    fclose(stdin);
    fprintf(stderr,"Test: (cin, %d chars) %.2lfc\n",NC,(clock()-cur+.0)/CLOCKS_PER_SEC);
}

void test_getchar_char() {
    int cur=clock();
    freopen("temp.txt","r",stdin);
    for (int i=0;i<NC;i++) {
        char t=getchar();
        if (t!=s[i]) {
            fprintf(stderr,"Fail with getchar\n");
            exit(1);
        }
    }
    fclose(stdin);
    fprintf(stderr,"Test: (getchar, %d chars) %.2lfc\n",NC,(clock()-cur+.0)/CLOCKS_PER_SEC);
}

void test_read_char() {
    int cur=clock();
    freopen("temp.txt","r",stdin);
    cin.read(sw,NC);
    fclose(stdin);
    int cur2=clock();
    for (int i=0;i<NC;i++)
        if (s[i]!=sw[i]) {
            cerr << i << ' ' << (int)s[i] << ' ' << (int)sw[i] << endl;
            fprintf(stderr,"Fail with read\n");
            exit(1);
        }
    fprintf(stderr,"Test: (read, %d chars) %.2lfc + %.2lfc\n",NC,(cur2-cur+.0)/CLOCKS_PER_SEC,(clock()-cur2+.0)/CLOCKS_PER_SEC);
}

void test_fread_char() {
    int cur=clock();
    freopen("temp.txt","r",stdin);
    fread(sw,1,NC,stdin);
    fclose(stdin);
    int cur2=clock();
    for (int i=0;i<NC;i++)
        if (s[i]!=sw[i]) {
            fprintf(stderr,"Fail with fread\n");
            exit(1);
        }
    fprintf(stderr,"Test: (fread, %d chars) %.2lfc + %.2lfc\n",NC,(cur2-cur+.0)/CLOCKS_PER_SEC,(clock()-cur2+.0)/CLOCKS_PER_SEC);
}

int main () {
    gen();
    test_printf_int();
    test_cout_int();
    test_write_int();
    test_scanf_int();
    test_fwrite_int();
    test_cin_int();
    test_printf_char();
    test_scanf_char();
    test_cout_char();
    test_cin_char();
    test_putchar_char();
    test_getchar_char();
    test_read_char();
    test_fread_char();
}