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equilibriumElement2.js
41 lines (37 loc) · 975 Bytes
/
equilibriumElement2.js
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function findEqui(arr) {
let sum = 0;
let lsum = 0;
for (let i = 0; i < arr.length; i++) sum += arr[i];
for (let i = 0; i < arr.length; i++) {
sum -= arr[i];
if (sum == lsum) return i + 1;
lsum += arr[i];
}
return -1;
}
function runProgram(input) {
let newInput = input.split("\n");
let arr = newInput[1].trim().split(" ").map(Number);
console.log(findEqui(arr));
}
if (process.env.USERNAME === "Ajit") {
runProgram(`5
3 3 5 5 1`);
} else {
process.stdin.resume();
process.stdin.setEncoding("ascii");
let read = "";
process.stdin.on("data", function (input) {
read += input;
});
process.stdin.on("end", function () {
read = read.replace(/\n$/, "");
read = read.replace(/\n$/, "");
runProgram(read);
});
process.on("SIGINT", function () {
read = read.replace(/\n$/, "");
runProgram(read);
process.exit(0);
});
}