ds-algo-study
Version:
Just experimenting with publishing a package
64 lines (60 loc) • 3.47 kB
JavaScript
const arr = [ 1, 1, 5, 2, 6, 10 ];
let arr1 = [ 1, 7, 12, 6, 5, 10 ];
//--------------------------------------------------
const partialSum = ( arr ) => {
const output = [];
arr.forEach( ( num, i ) => {
if ( i === 0 ) {
output[ i ] = num;
} else {
output[ i ] = num + output[ i - 1 ];
}
} );
return output;
};
console.log('------------------------------------------------partialSum------------------------------------------------')
console.log(' partialSum( arr )=[ 1, 1, 5, 2, 6, 10 ]: ', partialSum( arr ));
console.log(' partialSum( arr1 )=[ 1, 7, 12, 6, 5, 10 ]: ', partialSum( arr1 ));
console.log('------------------------------------------------partialSum------------------------------------------------')
/*
------------------------------------------------partialSum------------------------------------------------
partialSum( arr )=[ 1, 1, 5, 2, 6, 10 ]: [ 1, 2, 7, 9, 15, 25 ]
partialSum( arr1 )=[ 1, 7, 12, 6, 5, 10 ]: [ 1, 8, 20, 26, 31, 41 ]
------------------------------------------------partialSum------------------------------------------------
*/
//!v---------------------THIS ONE IS NOT WOKRING AS EXPECTED-----------------------------------------------------
const partSum = (array) => {
let newArr = [];
array.reduce((acum, ele) => {
let sum = acum + ele;
newArr.push(sum);
return acum + ele;
});
return newArr;
};
console.log('------------------------------------------------partSum------------------------------------------------')
console.log( 'partSum(arr)=[ 1, 1, 5, 2, 6, 10 ]: ', partSum( arr ) );
console.log( 'partSum(arr1)=[ 1, 7, 12, 6, 5, 10 ]: ', partSum( arr1 ) );
console.log('------------------------------------------------partSum------------------------------------------------')
/*
------------------------------------------------partSum------------------------------------------------
partSum(arr)=[ 1, 1, 5, 2, 6, 10 ]: [ 2, 7, 9, 15, 25 ]
partSum(arr1)=[ 1, 7, 12, 6, 5, 10 ]: [ 8, 20, 26, 31, 41 ]
------------------------------------------------partSum------------------------------------------------
*/
//--------------------------------------------------------------
//! -----------------------------------------------------------------------------------------------------------------------------------------//
/*
------------------------------------------------partialSum------------------------------------------------
partialSum( arr )=[ 1, 1, 5, 2, 6, 10 ]: [ 1, 2, 7, 9, 15, 25 ]
partialSum( arr1 )=[ 1, 7, 12, 6, 5, 10 ]: [ 1, 8, 20, 26, 31, 41 ]
------------------------------------------------partialSum------------------------------------------------
------------------------------------------------partSum------------------------------------------------
partSum(arr)=[ 1, 1, 5, 2, 6, 10 ]: [ 2, 7, 9, 15, 25 ]
partSum(arr1)=[ 1, 7, 12, 6, 5, 10 ]: [ 8, 20, 26, 31, 41 ]
------------------------------------------------partSum------------------------------------------------
------------------------------------------------rPartSumArr------------------------------------------------
rPartSumsArr(arr)=[ 1, 1, 5, 2, 6, 10 ]: [ 10, 16, 18, 23, 24, 25 ]
rPartSumsArr(arr1)=[ 1, 7, 12, 6, 5, 10 ]: [ 10, 15, 21, 33, 40, 41 ]
------------------------------------------------rPartSumArr------------------------------------------------
*/