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#2
rjsp2019-06-27 12:33
#include <stdio.h>
void total( float ar[][12], size_t n ) { float total = 0; for( size_t y=0; y!=n; ++y ) for( size_t m=0; m!=12; ++m ) total += ar[y][m]; printf( "the total rainfall of the %zu years is %2.2f\n", n, total ); } void aveyear( float ar[][12], size_t n ) { printf( "average rainfall of year:" ); for( size_t y=0; y!=n; ++y ) { float subtotal = 0; for( size_t m=0; m!=12; ++m ) subtotal += ar[y][m]; printf( " %2.2f", subtotal/12 ); } putchar( '\n' ); } void avemonth( float ar[][12], size_t n ) { printf( "average rainfall of month:" ); for( size_t m=0; m!=12; ++m ) { float subtotal = 0; for( size_t y=0; y!=n; ++y ) subtotal += ar[y][m]; printf(" %2.2f",subtotal/n ); } putchar( '\n' ); } int main( void ) { float rain[5][12] = { { 4.3f, 4.3f, 4.3f, 3.0f, 2.0f, 1.2f, 0.2f, 0.2f, 0.4f, 2.4f, 3.5f, 6.6f } , { 8.5f, 8.2f, 1.2f, 1.6f, 2.4f, 0.0f, 5.2f, 0.9f, 0.3f, 0.9f, 1.4f, 7.3f } , { 9.1f, 8.5f, 6.7f, 4.3f, 2.1f, 0.8f, 0.2f, 0.2f, 1.1f, 2.3f, 6.1f, 8.4f } , { 7.2f, 9.9f, 8.4f, 3.3f, 1.2f, 0.8f, 0.4f, 0.0f, 0.6f, 1.7f, 4.3f, 6.2f } , { 7.6f, 5.6f, 3.8f, 2.8f, 3.8f, 0.2f, 0.0f, 0.0f, 0.0f, 1.3f, 2.6f, 5.2f } }; total( rain, sizeof(rain)/sizeof(*rain) ); aveyear( rain, sizeof(rain)/sizeof(*rain) ); avemonth( rain, sizeof(rain)/sizeof(*rain) ); return 0; } |
#include<stdio.h>
void total(float ar[][12],int n)
{
float total=0;
for(int i=0;i<n;i++)
for(int j=0;j<12;j++)
total+=ar[i][j];
printf("the total rainfall of the %d years is %2.2f",n,total);
printf("\n");
}
void aveyear(float ar[][12],int n)
{
float subtotal;
printf("average rainfall of year :");
for(int i=0;i<n;i++){
for(int j=0,subtotal=0;j<12;j++)
subtotal+=ar[i][j];
printf("%2.2f ",subtotal/12);
}
printf("\n");
}
void avemonth(float ar[][12],int n)
{
float subtotal;
printf("average rainfall of month :");
for(int j=0;j<12;j++){
for(int i=0,subtotal=0;i<n;i++)
subtotal+=ar[i][j];
printf("%2.2f ",subtotal/n);
}
}
void main()
{
float rain[5][12]={
{4.3,4.3,4.3,3.0,2.0,1.2,0.2,0.2,0.4,2.4,3.5,6.6},
{8.5,8.2,1.2,1.6,2.4,0.0,5.2,0.9,0.3,0.9,1.4,7.3},
{9.1,8.5,6.7,4.3,2.1,0.8,0.2,0.2,1.1,2.3,6.1,8.4},
{7.2,9.9,8.4,3.3,1.2,0.8,0.4,0.0,0.6,1.7,4.3,6.2},
{7.6,5.6,3.8,2.8,3.8,0.2,0.0,0.0,0.0,1.3,2.6,5.2}};
total(rain,5);
aveyear(rain,5);
avemonth(rain,5);
}
这么明显的错误居然没发现