#include <stdio.h>

void le_mat(double r[100][100], int n);
double soma_sup(double r[100][100], int n);
double soma_inf(double r[100][100], int n);
void print_mat(double v[100][100], int n);


int main() {
double v[100][100];
int n;

    printf("Qual o tamanho da matriz? ");
	scanf("%d", &n);
	le_mat(v, n);
	print_mat(v,n);
	printf("O valor da soma superior eh %lf\n", soma_sup(v,n));	
	printf("O valor da soma inferior eh %lf\n", soma_inf(v,n));	
}

void le_mat(double r[100][100], int n) {
int i, j;	
   for (i = 0; i < n; i++) {
   	
   	for (j = 0; j < n; j++)  {
   		printf("Digite elemento[%d][%d] ", i,j);
		scanf("%lf", &r[i][j]);	
   	}
   	
   }
}


double soma_sup(double r[100][100], int n) {
int i, j;
double soma;
   soma = 0.0;	
   for (i = 0; i < n; i++) {
   	for (j = i; j < n; j++)  {
   		soma = soma + r[i][j];		
   	}
   	
   }	
   return soma;
}

double soma_inf(double r[100][100], int n) {
int i, j;
double soma;
   soma = 0.0;	
   for (i = 0; i < n; i++) {
   	for (j = 0; j <= i; j++)  {
   		soma = soma + r[i][j];		
   	}
   	
   }	
   return soma;
}

void print_mat(double v[100][100], int n) {
int i, j;	
   for (i = 0; i < n; i++) {
   	
   	for (j = 0; j < n; j++)  {
   		printf("%5.2lf ", v[i][j]);
   	}
   	printf("\n");
   	
   }	
}