task1 code：
#include <stdio.h>
#include <sys/time.h>
int main()
{
struct timeval start,end; //to store time of starting and ending of program
gettimeofday(&start,0);
printf("Time in microsecond for every second: \n"); //output
for(int i=0;i<100;i++) //outer loop to run 100 times
{
struct timeval loopstart,loopend; //to store time of starting and ending of loop
gettimeofday(&loopstart,0); //measuring time at start of loop
for(int j=0;j<1000000;j++); //outer loop to run 1000000 times
gettimeofday(&loopend,0); //measuring time at end of loop
//calculating time for one iteration
long ms=(loopend.tv_sec-loopstart.tv_sec)*1000000 + loopend.tv_usec-loopstart.tv_usec;
printf("%ld\n",ms); //output
}
gettimeofday(&end,0);
long ms=(end.tv_sec-start.tv_sec)*1000000 + end.tv_usec-start.tv_usec; //calculating time for whole program
printf("Time for entire program: %ld\n",ms); //output
return 0;
}
Homework Answers
-----------------------------------------------From Given Source Code Without Modification-------------------------------------------
#include <stdio.h>
#include <sys/time.h>
int main()
{
struct timeval start,end; //to store time of starting and ending of program
gettimeofday(&start,0);
printf("Time in microsecond for every second: \n"); //output
for(int i=0;i<100;i++) //outer loop to run 100 times
{
struct timeval loopstart,loopend; //to store time of starting and ending of loop
gettimeofday(&loopstart,0); //measuring time at start of loop
for(int j=0;j<1000000;j++); //outer loop to run 1000000 times
gettimeofday(&loopend,0); //measuring time at end of loop
//calculating time for one iteration
long ms=(loopend.tv_sec-loopstart.tv_sec)*1000000 + loopend.tv_usec-loopstart.tv_usec;
printf("%ld\n",ms); //output
}
gettimeofday(&end,0);
long ms=(end.tv_sec-start.tv_sec)*1000000 + end.tv_usec-start.tv_usec; //calculating time for whole program
printf("Time for entire program: %ld\n",ms); //output
return 0;
}
-----------------------------------------------------When #define DEBUG 1 is used------------------------------------------------------
#include <stdio.h>
#include <sys/time.h>
#define DEBUG 1 //Constant is defined for true
int main()
{
struct timeval start,end; //to store time of starting and ending of program
//if statement is added
if(DEBUG){
gettimeofday(&start,0);
}
printf("Time in microsecond for every second: \n");
//output
for(int i=0;i<100;i++) //outer loop to run 100 times
{
struct timeval loopstart,loopend; //to store time of starting and ending of loop
//if statement added
if(DEBUG){
gettimeofday(&loopstart,0); //measuring time at start of loop
}
for(int j=0;j<1000000;j++); //outer loop to run 1000000 times
//if statement added
if(DEBUG){
gettimeofday(&loopend,0); //measuring time at end of loop
}
//calculating time for one iteration
long ms=(loopend.tv_sec-loopstart.tv_sec)*1000000 + loopend.tv_usec-loopstart.tv_usec;
printf("%ld\n",ms); //output
}
//if statement added
if(DEBUG){
gettimeofday(&end,0);
}
long ms=(end.tv_sec-start.tv_sec)*1000000 +
end.tv_usec-start.tv_usec; //calculating time for whole
program
printf("Time for entire program: %ld\n",ms); //output
return 0;
}
-------------------------------------------------------------When #define DEBUG 0 and if condition is used---------------------------
#include <stdio.h>
#include <sys/time.h>
#define DEBUG 0 //for false
int main()
{
struct timeval start,end; //to store time of starting and ending of program
//if false is applied
if(DEBUG){
gettimeofday(&start,0);
}
printf("Time in microsecond for every second: \n");
//output
for(int i=0;i<100;i++) //outer loop to run 100 times
{
struct timeval loopstart,loopend; //to store time of starting and ending of loop
//if false is applied
if(DEBUG){
gettimeofday(&loopstart,0); //measuring time at start of loop
}
for(int j=0;j<1000000;j++); //outer loop to run 1000000 times
//if false is applied
if(DEBUG){
gettimeofday(&loopend,0); //measuring time at end of loop
}
//calculating time for one iteration
long ms=(loopend.tv_sec-loopstart.tv_sec)*1000000 + loopend.tv_usec-loopstart.tv_usec;
printf("%ld\n",ms); //output
}
//if false is applied
if(DEBUG){
gettimeofday(&end,0);
}
long ms=(end.tv_sec-start.tv_sec)*1000000 +
end.tv_usec-start.tv_usec; //calculating time for whole
program
printf("Time for entire program: %ld\n",ms); //output
return 0;
}
***** Time is there in the given screenshots*****
Add Answer to:
task1 code： #include <stdio.h> #include <sys/time.h> int main() { struct timeval start,end; //to store time of starting and ending of program gettimeofday(&start,0); printf("Time...
#include <stdio.h> #include <sys/time.h> #define DEBUG 1 //Constant is defined for true int main() { struct timeval start,end; //to store time of starting and ending of program //if state...
#include <stdio.h>
#include <sys/time.h>
#define DEBUG 1 //Constant is defined for true
int main()
{
struct timeval start,end; //to store time of starting and ending
of program
//if statement is added
if(DEBUG){
gettimeofday(&start,0);
}
printf("Time in microsecond for every second: \n"); //output
for(int i=0;i<100;i++) //outer loop to run 100 times
{
struct timeval loopstart,loopend; //to store time of starting
and ending of loop
//if statement added
if(DEBUG){
gettimeofday(&loopstart,0); //measuring time at start of
loop
}
for(int j=0;j<1000000;j++); //outer loop to...
#include<stdio.h> #include<stdlib.h> #include <time.h> int main() { /* first you have to let the computer generate...
#include<stdio.h>
#include<stdlib.h>
#include <time.h>
int main()
{
/* first you have to let the computer generate a random number.
Then it has to declare how many tries the user has for the game
loop.
we then need the player to enter their guess. After every guess we
have to give an output of how many numbers they have in the right
location
and how many they have the right number. The player will keep
guessing until their 10 tries are...
#include<stdio.h> int main() { int data[10], i, j, temp; printf("Enter 10 random number to...
#include<stdio.h> int main() { int data[10], i, j, temp; printf("Enter 10 random number to sort in ascending order:\n"); for(i = 0; i < 10; i++) scanf("%d", &data[i]); /* Sorting process start */ ****** INSERT YOUR CODE TO COMPLETE THE PROGRAM ****** printf("After sort\n"); for(i = 0; i < 10; i++) printf("%d\n",data[i]); return 0; } Looking for alternative solutions for the program code.
#include <stdio.h> #include<string.h> int main() { char strText[100] ="Start"; char i; int nTextASCIISum = strText[0] +...
#include <stdio.h> #include<string.h> int main() { char strText[100] ="Start"; char i; int nTextASCIISum = strText[0] + strText[1] + strText[2]; int nTextLen = strlen(strText); int count = 0; printf("Welcome to token generator!\n"); printf("Enter a word to use in the token generator.\n You may enter as many words as you like. \n Press q and key when finished.\n"); scanf("%c", &strText[i]); //compute when to stop loop //check nTextLen == 1 and strText[0] == 'q' for(i=0;i< nTextLen;i++) if ((strlen(strText) != 1) || (strText[0] !=...
Cache performance The starting code would have: struct position { int x; int y; } int...
Cache performance The starting code would have: struct position { int x; int y; } int N; struct position grid[N][N]; int totalX=0; int totalY=0; int i, j; //For X loop for( i = 0; i < N; i ++){ for( j = 0; j < N; j++){ totalX += grid[i][j].x; } } //For Y loop for( j = 0; j < N; j++){ for( i = 0; i < N; i++){ totalY += grid[i][j].y; } } Part I: This part...
#include<stdio.h> #include<stdio.h> int main(){ int i; //initialize array char array[10] = {“Smith”, “Owen”, “Kowalczyk”, “Glass”, “Bierling”,...
#include<stdio.h> #include<stdio.h> int main(){ int i; //initialize array char array[10] = {“Smith”, “Owen”, “Kowalczyk”, “Glass”, “Bierling”, “Hanenburg”, “Rhoderick”, “Pearce”, “Raymond”, “Kamphuis”}; for(int i=0; i<8;i++){ for(int j=0; j<9; j++){ if(strcmp(array[j],array[j+1])>0){ char temp[20]; strcpy(temp,array[j]); strcpy(array[j],array[j+1]); strcpy(array[j+1],temp); } } } printf(“---------File Names---------\n”); for(inti=0; i<9; i++){ printf(“\t%s\n”,array[i]); } printf(-------5 Largest Files according to sorting----\n”); for(int i=0;i>=5;i--) { printf(“\t%s\n”,array[i]); } return0; } Consider the "sort" program (using with void* parameters in the bubblesort function) from the week 10 "sort void" lecture. Modify it as follows...
#include <stdio.h> #include <string.h> #include <ctype.h> #include <stdlib.h> int main(void) { /* Type your code here....
#include <stdio.h> #include <string.h> #include <ctype.h> #include <stdlib.h> int main(void) { /* Type your code here. */ int GetNumOfNonWSCharacters(const char usrStr[]) { int length; int i; int count = 0; char c; length=strlen(usrStr); for (i = 0; i < length; i++) { c=usrStr[i]; if ( c!=' ' ) { count++; } } return count; } int GetNumOfWords(const char usrStr[]) { int counted = 0; // result // state: const char* it = usrStr; int inword = 0; do switch(*it)...
Source code to modify: #include <stdio.h> #include <unistd.h> #include <sys/types.h> int main() { pid_t pid; /*fork...
Source code to modify:
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
int main()
{
pid_t pid;
/*fork a child process*/
pid = fork();
if (pid<0){ /*error occured*/
fprintf(stderr,"Fork failed\n");
return 1;
}
else if (pid == 0) { /*child process */
printf("I am the child %d\n",pid);
execlp("/bin/ls","ls",NULL);
}
else { /*parent process */
/*parent will wait for the child to complete*/
printf("I am the parent %d\n",pid);
wait(NULL);
printf("Child Complete\n");
}
return 0;
}
1. Write program codes for 3.21 a and...
How do i finish this code: #include <stdio.h> int main() { long long decimal, tempDecimal, binary;...
How do i finish this code: #include <stdio.h> int main() { long long decimal, tempDecimal, binary; int reminder, weight = 1; binary = 0.0; //Input decimal number from user printf("Enter any decimal number: "); scanf("%lld", &decimal); // Since we do not want change the value of decimal in the code // let us use tempDecimal to store the value of decimal tempDecimal = decimal; printf("\n\n"); // Let us use while loop first to implement printf("while loop part:\n"); /**************START FROM HERE...
6. Consider the following program: #include <stdio.h> main() { int a,b,c,d ; a=0; while (1) {...
6. Consider the following program: #include <stdio.h> main() { int a,b,c,d ; a=0; while (1) { printf("%d\n", a); printf("Input? "); scanf("%d",&c); if (c == 0) break; d=0; for (b=1; b<=c; b++) if (c%b == 0) d++; if (d == 2 11 C == 1) a=a+c; } } What does this program do? Rewrite the code, organizing it using sound principles. Include comments and redo variable names and indentation. Use multiple functions, blocks, and/or preprocessing if you deem it necessary.
#include <stdio.h>
#include <sys/time.h>
#define DEBUG 1 //Constant is defined for true
int main()
{
struct timeval start,end; //to store time of starting and ending
of program
//if statement is added
if(DEBUG){
gettimeofday(&start,0);
}
printf("Time in microsecond for every second: \n"); //output
for(int i=0;i<100;i++) //outer loop to run 100 times
{
struct timeval loopstart,loopend; //to store time of starting
and ending of loop
//if statement added
if(DEBUG){
gettimeofday(&loopstart,0); //measuring time at start of
loop
}
for(int j=0;j<1000000;j++); //outer loop to...
#include<stdio.h>
#include<stdlib.h>
#include <time.h>
int main()
{
/* first you have to let the computer generate a random number.
Then it has to declare how many tries the user has for the game
loop.
we then need the player to enter their guess. After every guess we
have to give an output of how many numbers they have in the right
location
and how many they have the right number. The player will keep
guessing until their 10 tries are...
Source code to modify:
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
int main()
{
pid_t pid;
/*fork a child process*/
pid = fork();
if (pid<0){ /*error occured*/
fprintf(stderr,"Fork failed\n");
return 1;
}
else if (pid == 0) { /*child process */
printf("I am the child %d\n",pid);
execlp("/bin/ls","ls",NULL);
}
else { /*parent process */
/*parent will wait for the child to complete*/
printf("I am the parent %d\n",pid);
wait(NULL);
printf("Child Complete\n");
}
return 0;
}
1. Write program codes for 3.21 a and...
6. Consider the following program: #include <stdio.h> main() { int a,b,c,d ; a=0; while (1) { printf("%d\n", a); printf("Input? "); scanf("%d",&c); if (c == 0) break; d=0; for (b=1; b<=c; b++) if (c%b == 0) d++; if (d == 2 11 C == 1) a=a+c; } } What does this program do? Rewrite the code, organizing it using sound principles. Include comments and redo variable names and indentation. Use multiple functions, blocks, and/or preprocessing if you deem it necessary.
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