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QuestionHint and solution stay closed until you open them
Read two integers r and c, then r × c integers in row-major order.
Print the sum of every entry.
Input. r c, then r*c integers.
Output. One integer: the total.
Constraints
- 1 ≤ r, c ≤ 20
Examples
Input
2 3 1 2 3 4 5 6
Output
21
Hint
- Nested loops over i and j; add each value you read.
Show correct code
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#include <iostream>
int main() {
int r, c;
std::cin >> r >> c;
long long sum = 0;
for (int i = 0; i < r; i++) {
for (int j = 0; j < c; j++) {
int x;
std::cin >> x;
sum += x;
}
}
std::cout << sum << "\n";
return 0;
}
main.cppC++17 · g++ · Ctrl + Enter runs
ResultIdle
Run to see output. Check grades the tests.