OAIP/19-20/19.c

#include <stdio.h>
#include <Windows.h>

void srar(), Load();
void Psrar(), PLoad(int);
void Psrar3();
void Z4();

int arr[1000];
int* parr;
int n;

int main1() {
	SetConsoleCP(1251);
	SetConsoleOutputCP(1251);

	Load();
	srar();

	PLoad(0);
	Psrar();
	free(parr);

	PLoad(1);
	Psrar3();
	free(parr);

	PLoad(2);
	Z4();
	free(parr);

	return 0;
}

void Load() {
	FILE* fin = fopen("D:\\university\\<EFBFBD><EFBFBD><EFBFBD><EFBFBD>\\lab\\Temp\\19-20\\in1.txt", "rt");
	if (fin == NULL) {
		printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>\n");
		return;
	}

	fscanf_s(fin, "%d", &n);
	for (int i = 0; i < n; i++) {
		fscanf_s(fin, "%d", &arr[i]);
	}

	fclose(fin);
}

void srar() {
	float sa = 0;
	float s = 0;
	for (int i = 0; i < n; i++) {
		s += arr[i];
	}
	sa = s / n;


	int m = 0;
	for (int i = 0; i < n; i++) {
		if (arr[i] > sa) {
			m++;
		}
	}

	FILE* fout = fopen("D:\\university\\<EFBFBD><EFBFBD><EFBFBD><EFBFBD>\\lab\\Temp\\19-20\\out\\out1.txt", "wt");
	if (fout == NULL) {
		printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>\n");
		return;
	}

	fprintf(fout, "%d\n", m);
	for (int i = 0; i < n; i++) {
		if (arr[i] > sa) {
			fprintf(fout, "%d ", arr[i]);
		}
	}

	fclose(fout);
}

void PLoad(int action) {
	FILE* fin = NULL;
	if (action == 0) {
		fopen_s(&fin, "D:\\university\\<EFBFBD><EFBFBD><EFBFBD><EFBFBD>\\lab\\Temp\\19-20\\in2.txt", "rt");
	}
	else if (action == 1) {
		fopen_s(&fin, "D:\\university\\<EFBFBD><EFBFBD><EFBFBD><EFBFBD>\\lab\\Temp\\19-20\\in3.txt", "rt");
	}
	else if (action == 2) {
		fopen_s(&fin, "D:\\university\\<EFBFBD><EFBFBD><EFBFBD><EFBFBD>\\lab\\Temp\\19-20\\in4.txt", "rt");
	}

	if (fin == NULL) {
		printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>\n");
		return;
	}

	fscanf_s(fin, "%d", &n);
	parr = (int*)malloc(sizeof(int) * n);

	for (int i = 0; i < n; i++) {
		fscanf_s(fin, "%d", &parr[i]);
	}

	fclose(fin);
}

void Psrar() {
	float sa = 0;
	float s = 0;
	for (int i = 0; i < n; i++) {
		s += parr[i];
	}
	sa = s / n;

	int m = 0;
	for (int i = 0; i < n; i++) {
		if (parr[i] > sa) {
			m++;
		}
	}

	FILE* fout = fopen("D:\\university\\<EFBFBD><EFBFBD><EFBFBD><EFBFBD>\\lab\\Temp\\19-20\\out\\out2.txt", "wt");
	if (fout == NULL) {
		printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>\n");
		return;
	}

	fprintf(fout, "%d\n", m);
	for (int i = 0; i < n; i++) {
		if (parr[i] > sa) {
			fprintf(fout, "%d ", parr[i]);
		}
	}

	fclose(fout);
}

void Psrar3() {
	float sa = 0;
	float s = 0;
	for (int i = 0; i < n; i++) {
		s += parr[i];
	}
	sa = s / n;

	int m = 0;
	for (int i = 0; i < n; i++) {
		if (parr[i] < sa && parr[i] > 0) {
			m++;
		}
	}

	FILE* fout = fopen("D:\\university\\<EFBFBD><EFBFBD><EFBFBD><EFBFBD>\\lab\\Temp\\19-20\\out\\out3.txt", "wt");
	if (fout == NULL) {
		printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>\n");
		return;
	}

	fprintf(fout, "%d\n", m);
	for (int i = 0; i < n; i++) {
		if (parr[i] < sa && parr[i] > 0) {
			fprintf(fout, "%d ", parr[i]);
		}
	}

	fclose(fout);
}

void Z4() {
	float max = parr[0];
	for (int i = 1; i < n; i++) {
		if (parr[i] > max) {
			max = parr[i];
		}
	}

	float more_then = max*2/3;

	int k = 0;

	for (int i = 0; i < n; i++) {
		if (parr[i] >= more_then) {
			k++;
		}
	}
	

	FILE* fout = fopen("D:\\university\\<EFBFBD><EFBFBD><EFBFBD><EFBFBD>\\lab\\Temp\\19-20\\out\\out4.txt", "wt");
	if (fout == NULL) {
		printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>\n");
		return;
	}

	fprintf(fout, "%d\n", k);
	for (int i = 0; i < n; i++) {
		if (parr[i] >= more_then) {
			fprintf(fout, "%d ", parr[i]);
		}
	}

	fclose(fout);
}