Compilare: main.cpp: In function 'int main()': main.cpp:19:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < s.size() + 1; i++) ~~^~~~~~~~~~~~~~ main.cpp:20:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < s.size() + 1; j++) ~~^~~~~~~~~~~~~~ main.cpp:22:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < s.size(); i++) ~~^~~~~~~~~~ main.cpp:22:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i = 0; i < s.size(); i++) ^~~ main.cpp:24:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' int n = s.size(); ^~~ main.cpp:30:83: warning: suggest parentheses around '&&' within '||' [-Wparentheses] dp[i][j] = max(dp[i][j], (dp[i + 1][k - 1] || i == k - 1) && (dp[k + 1][j - 1] || k + 1 == j) || (j - i + 1) == 3); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~