labstr123

ПРВА ЗАДАЧА

‪#include<stdio.h>
void write() {
FILE *f = fopen("text.txt", "w");
char c;
while((c = getchar()) != '#') {
fputc(c, f);
}
fclose(f);
}
int main() {
char ch;
write();
float c = 0, br = 0;
FILE *f1;
if ((f1 = fopen("text.txt", "r")) == NULL) {
printf ("Datotekata ne se otvora.");
return -1;
}
while ((ch = fgetc(f1)) != EOF) {
if (isalpha(ch)) {
c++;
}
if (isdigit(ch)) {
br++;
}
}
printf("%.2f",br/c);
fclose(f1);
return 0;
//
}


ВТОРА ЗАДАЧА

#include <stdio.h>
void writeToFile() {
FILE *f = fopen("matrica.txt", "w");
char c;
while((c = getchar()) != '#') {
fputc(c, f);
}
fclose(f);
}
void printFile() {
FILE *f=fopen("izlez.txt","r");
char line[100];
while(!feof(f)){
fgets(line,100,f);
if (feof(f))
break;
printf("%s",line);
}
fclose(f);
}
int main() {
writeToFile();
FILE *f1, *f2;
char c;
int h, b, m[100][100], i, r, s = 0;
if((f1 = fopen("matrica.txt", "r")) == NULL) {
printf("Datotekata ne se otvora.");
return -1;
}
fscanf(f1,"%d %d", &h, &b);
for(i = 0; i < h&&!feof(f1); i++) {
for(r = 0; r < b&&!feof(f1); r++) {
fscanf(f1, "%d", &m[i][r]);
}
}
fclose(f1);
f2 = fopen("output.txt", "w");
for(i = 0; i < h; i++) {
for(r = 0; r < b; r++) {
s=s+m[i][r];
}
if(s > 10) {
printf("%d\n", s);
}
s = 0;
}
fclose(f2);
printFile();
return 0;
}

ТРЕТА ЗАДАЧА

#include <stdio.h>
void writeToFile() {
FILE *f = fopen("text.txt", "w");
char c;
while((c = getchar()) != '#') {
fputc(c, f);
}
fclose(f);
}
void printFile() {
FILE *f=fopen("print.txt","r");
char line[100];
while(!feof(f)){
fgets(line,100,f);
if (feof(f))
break;
printf("%s",line);
}
fclose(f);
}
int isPalindrom(char* num) {
int i, bb = 0;
char n[101];
for(i = 0; i < strlen(num); i++) {
if(isalpha(num[i])) {
n[bb] = num[i];
bb++;
}
}
n[bb] = '\0';
for(i = 0, bb = strlen(n) - 1; i <= bb; i++, bb--) {
if(toupper(*(n + i)) != toupper(*(n + bb)))
return 0;
}
for(i = 0; i < strlen(n); i++)
num[i] = n[i];
num[i] = '\0';
return 1;
}
int main() {
int len, flag = 0;
char n[101];
FILE* input = fopen("text.txt", "r");
FILE* output = fopen("print.txt", "w");
writeToFile();
while((fscanf(input, "%s", n)) != EOF) {
if(isPalindrom(n))
fprintf(output, "%s\n", n);
}
fclose(input);
fclose(output);
printFile();
return 0;
printFile();
return 0;
}

ЧЕТВРТА ЗАДАЧА

#include <stdio.h>
void writeToFile() {
FILE *f = fopen("text.txt", "w");
char c;
while((c = getchar()) != '#') {
fputc(c, f);
}
fclose(f);
}
int main() {
writeToFile();
char ch;
int gb = 0, l = 0, lt=0, i = 1;
FILE *file = fopen("text.txt", "r");
if ((ch = fgetc(file)) == 'O'){
printf("%d", 3);
return 0;
}
else
while ((ch = fgetc(file)) != EOF) {
if (isupper(ch))
gb++;
if (ch=='\n') {
if (gb > lt)
{
lt = gb;
l = i;
}
gb = 0;
i++;
}
}
printf("%d", l);
return 0;
}